But new wine must be put into new containers and both are preserved. No one also having drunk old wine immediately enjoys the new, for he says the old is better. And then one short passage in Isaiah chapter 65 and verse 8. Thus says the Lord Yahweh, the new wine is found in the great cluster.

The intention is not to not destroy it since there is a blessing in it. Jesus was questioned about some things that he and his disciples were were doing differently. They seem to be socializing with the sinners, the publicans, the prostitutes.

How can you do that? It's never been done before by the religious people. The Pharisees kept themselves pure and holy. What was Jesus trying to do? And then they noticed that John the Baptist and his disciples, they'd been taught to spend time fasting in the commitment to the Lord.

And they said, we noticed that your disciples, they're always eating and drinking. You know, we never seen them fast yet. They were simply having a party.

What's with this? Why are you doing it so different? These were the accusations that they gave to Jesus. And Jesus response was this passage that we looked at concerning the new wine and the new wine skins. Jesus used a parable, which is a natural principle with a spiritual meaning to answer them.

And he said, you need to understand what happens when you mix the old way of doing things. With a new way. See, Jesus was bringing a new way.

They didn't like that. They preferred the old way. But Jesus said, firstly, you don't patch an old garment with a new piece of material.

Because they're not going to agree. The first wash you put it in, the new piece of material is going to shrink and it's going to rip. And then the garment is going to be ruined.

So don't do it. And he said, you don't put new wine into old containers. Well, they use the word wine skin there.

These days, we don't use wine skins anymore. But in those days, they would take the skin of an animal. And they would sew it up and make a bottle out of it.

And so when wine was created, they would pour the fresh grape juice into this skin. And then seal it up and leave it to ferment. Now, you know that when grape juice ferments and becomes wine, it gives off a lot of gas.

And as a result, pressure is built up. Well, they didn't have modern technology then. They just had these skins.

And so the idea was, if you put it in this nice, freshly prepared skin that's still soft and supple, that when the gas comes out and the wine begins to blow up and expand, the bottle would just blow up and stretch a bit with it until the wine is fully fermented. And then you could open and you can start to pour it out. Now, when a wine skin had been standing for a while, it wasn't soft anymore.

It would go hard and rigid. And so Jesus said, if you put new wine into these old wine skins, the moment the fermentation takes place and it begins to expand with the gas, the skin doesn't stretch. It's going to burst.

Then you're going to lose the wine and the skins. So actually, there's no benefit to it at all. So that's the illustration Jesus was giving.

And he was sharing a principle which is still valid today. Why? Because God is doing a new thing. Back there already, Jesus was doing a new thing.

Something different to the way they were doing it before. And they were already kicking against it. They didn't like it.

Jesus said, you give somebody the new wine, they say, yeah, I don't like that. They're used to the taste of the old one. You know, we want the old, well-fermented wine that's been lying for a long time and it's accumulated that rich flavor.

That's what we prefer. We don't like the new wine. Change is a way of life.

You know that? If you've been alive for a while, you should know this by now. Change is one of those things that we cannot avoid. It's part.

Of the very fabric of our existence. Now, in order for us to grow, we've got to change. Imagine if you still were the way you were as a toddler.

Please, Lord. Some people never grow up and you look at them and you say they need a bit of personal growth. They need a bit of maturity.

Change is necessary. There are transitions. We go through, but there's two mistakes that people make when it comes to change.

The first one is some people change without any real reason. They just like change. You know, there are some things that shouldn't change.

Yes, life is filled with change, but some things shouldn't change. Some things have been improved and remain constant. And sometimes to succeed in life, we need to learn to be consistent.

Instead of just changing all the time and trying something new. Some people just thrive on something new and they never actually accomplish anything. They never follow through and finish what they started.

So, just change for the sake of change. It's not going to accomplish very much at all. But then we have the opposite end, don't we? The RC factor.

Resistance to change. And actually, this is the more common one, isn't it? We like to remain in our comfort zone. We're afraid of change.

We're afraid of the future. What's going to happen if we do things differently? This is the way I've always done it. It's the way my dad did it.

It's the way his dad did it. Why change it? Why break it? It's working fine. Well, you know, if you want to stick to that, you're going to have to give up all modern appliances and technologies and go back to doing things the way they did way back there, which is a bit foolish, isn't it? Resistance to change.

You know, most of us, unfortunately, are in that category of resistance to change. There are a few who thrive on change for the sake of change. But I say most of the time, we settle into habit patterns and get into a comfort zone and we don't want to change.

So how does change come about? Only one way. Pressure. Pressure.

See, I think it's one of Newton's laws said that an object will continue in the same direction unless an external pressure is applied to it to change its direction. And I'm afraid that's the case with most of us. We set our path and we go and we say, that's the way I'm going to do it.

I'm comfortable doing it. Don't mess with it. And pressure has to come to cause us to move out of that path.

And sometimes it's necessary for us to move out of that path. You see, circumstances change. We're not living in the same kind of circumstances today as what we were years back.

And if you've been on this earth for a long time and you look back over your life, trust me, a lot of things have changed since you were young. Somehow it's accelerating, isn't it? All the time, change is taking place. You just need to look back on technology a couple of years and already there's been so much change.

So, you know, I don't see why I should use these newfangled devices like tablets and phones. I'm happy with my little notebook. Oh, the Lord bless you if you can survive these days with a little notebook.

Because circumstances have changed and sooner or later, the pressure is going to be on you to change over the times. Otherwise, you're not going to cope. But you see, the problem is people change, circumstances change, and very often it causes a conflict in our lives.

Because we find that we cannot hold on to the old and embrace the new together. Sometimes we try, but it's difficult. See, the new wine, the bad practice, you're going to have to make a choice.

Either you're going to have to stick with the old or you're going to have to move over to the new. There's no in-between, unfortunately. Hey, I'm not even talking spiritual things yet.

I'm talking principles of life. We're going to get to the spiritual application shortly. Now, some of us, we have a problem because of our temperaments.

Expressives are the ones very often who want to change just for the sake of change. They get bored with routine. I'm tired of doing it that way.

Let's try it a different way. Analyticals are the total opposite. They say, you know what, this way has worked for the last 20 years.

What do you want to change it for? It's working fine for me. I've been doing this for years and it's still working great. Why should I change it? You see, you see the two kinds right there, those who change for the sake of change and those who resist change.

Well, it's not only temperaments. Because all of us are creatures of habit and we settle down into our comfort zone. Now, over the years, the church of God has changed.

It has changed drastically and it's still in a process of change. And so the main topic I would like to speak on today is the changes that God is bringing into the body of Christ. Now, there have been different stages to the church.

And I've identified in some of our teachings, three different churches that are made clear in scripture. The very first church was known as the church in the wilderness. It was the nation of Israel when God called them out to himself, led them through the wilderness, manifested himself to them.

Now, God's people were in Egypt. They were in bondage and they left Egypt for the new promised land. They grumbled, they groaned, they complained to the Lord.

Lord, we don't like all the tough hard work that Pharaoh's given us. Lord, set us free. And so God sent along somebody to take them out.

And Moses brought them out with such great miracles and signs. But you know, they were barely out of the country and in the desert when suddenly they realized, this isn't fun. You know what? We had some better things back there in Egypt, to tell you the truth.

I don't like this new way of living. Ami, can't we go home? This is home now. But I like the old home.

I like what I had there. I like the way we did it. You know what? Egyptian laid on the steaks for us every week.

We could have our weekend barbecue. Man, meat was just laid. I just grabbed the biggest, whatever you wanted was there.

We got no meat here. Man, I could do with a nice juicy steak right now. I wish we were back in Egypt.

It didn't take long for them to complain because they didn't like change. They longed for the old life. And then eventually God brought them to the promised land with all these awesome things.

All the fruit of the land was so magnificent. And now they settled in and finally realized, hey, I'm glad we didn't stay in Egypt. This is so much better.

Took them 40 years to get there. Took them 40 years to get there. You know what? God had to kill off all the old people because they just weren't going to change.

He had to bring in some new younger generation who were ready to go and do something new. So they settled in their land. And they developed the pattern for serving God.

God had started to give a pattern in the wilderness there with Moses. And they formed the tabernacle. And then David came and he added something extra with praise and worship and music.

And then Solomon brought it all together and made this beautiful temple. And there we are. We finally have our new established church system.

We go to the temple and we worship God. And so they continued on and on and on for about quite a few hundred years. Quite happy with the way that they were serving God.

You see, that was the first church. Then came John the Baptist. Got them all stood up and ready to get back.

Commit themselves fully to the Lord. And they were just feeling comfortable and happy with it. And along came this Nazarene.

And he started to change it all. He started to do things on the Sabbath. What? Don't you know that that's wrong? Oh, he started to violate all their traditions.

He started to do worship in a totally different way that was never done before. They didn't like that. Didn't like that at all.

They said, you know, we're going to follow the Lord the way our fathers did. The way our ancestors did. This is the way God showed us.

And this is the way it should be. Well, Jesus came and he messed it all up. He's messed it up totally.

Did everything different. Challenged their system. And of course, they were so excited about it that they crucified him.

That's how excited they were about the new thing that Jesus was bringing in. Have you been there? Ever try to bring change? Ever felt God was leading you to do something different to what everybody else was doing? And you thought, man, people are just going to so appreciate this. Because this is such exciting stuff.

This is such awesome stuff. I'm sure everybody's going to open their hearts wide. Open their arms wide and say, wow, we've been waiting for this.

This is awesome. Get ready to get crucified. Because that's what's going to happen.

And that is what has been happening to the body of Christ. See, when Jesus came, he introduced a new church. The church that wasn't based on the Jewish laws.

A salvation that was by faith in him alone and nothing more. And now he was not only offering it to God's chosen people, the Jews. He was offering it to the Gentiles.

How dare he? This Syro-Phoenician woman who's totally out of the covenant comes and asks for him to do something. And he doesn't say to her, become a Jew first, then I'll do it for you. He said, I can see you've got great faith.

Because of your faith, I will answer your desire. Then as he gathers his disciples together to commission them before ascending back into heaven, he says, now go into all the world and preach the gospel to everybody. Not just the Jews.

Everybody. A new church was formed. It was no longer the old church of the nation of Israel.

But a new church was created. And Jesus finalized on the cross everything that was needed for us to enter into this new church. And he said, it is finished.

About that time, the first church was ready to be demolished and removed. And of course, you would expect all of these new believers to say, well, isn't this awesome? We can give up all the old Jewish traditions and laws and we can live under grace and in freedom and we can enjoy the Lord and we can now be friends with our Gentile neighbors. Not.

Not. They were so used to doing it the old way. They continued their Jewish practices.

And in fact, Jesus had to keep reminding them. They kept saying, so Lord, are you going to restore Israel? You're going to restore the kingdom of Israel? They didn't get it. They didn't want to get it because they wanted to stay with the old.

So what happened? That new fiery church that was started with the early apostles. It got totally eroded away by the old way of doing things. And when God raised up the apostle Paul to now preach exclusively to the Gentiles and to bring them into this new thing, the Jews kicked against it and said, no, not acceptable.

Paul, how dare you teach these people that they don't need to obey the law anymore, that they don't need to carry out the Jewish practices anymore. They fought him tooth and nail. Same pattern again.

Eventually, as the apostles died off, and there was nobody to continually direct the church into this new thing. The second church began to die, began to vanish away. The first thing they did was move back into the old legalistic practices, into the old priesthood.

And Jesus had come as the final high priest. And he said, every believer should now be a priest. Now, they went back into the old.

The traditional church became formed, known as the Roman Catholic Church. Went right back into works and law and self-effort and having to have a priest. Before you could come before the Lord.

They went right back to the first church. The new church was destroyed. Can you see what happens when you try and put the new wine into an old container? Do you see what happens when you try and sew a new piece of material onto an old garment, just like Jesus said? It's not going to work.

And in the end, not only are you going to lose the new, the old is going to be destroyed as well. New just died. It fossilized and disappeared and faded away.

And God had to send somebody to bring change. Church history tells us that men like Martin Luther, who rose up and started the Reformation, began to bring a change to the church, began to introduce something new. And some of those early reformers who stood up like Martin Luther were not only opposed, they were actually burnt at the stake as heretics.

Resistance to change has been there all along. You see, you can't mix the old and the new. Folks, God wants to do something new.

And he wants us to move into the new. We can't do things the old way. People are still going to fight us.

They're still going to prefer the old. Today, there are three kinds of church that exist. You just need to look and you'll see them.

It's those who are trying to mix the old and the new together. Jewish practices still abound even in the modern, spirit-filled, charismatic church. We're riddled with these rituals and Jewish practices.

And I'm not going to enumerate them now because I've taught on that elsewhere. But you'll be surprised how much legalism and self-effort and works and rituals are still in the body of Christ today. They date back from way back in the Old Testament.

They should be gone. You can't mix them. Roman Catholic church practices still abound.

And many people have come out of that church system and have found the Lord as their savior and have been filled with the spirit and entered into the new things. But somehow, they still hold on to some of the old traditions. Early Reformation practices still abound.

Even those who finally follow modern Luther and the Reformers. They formed a whole brand of churches called the Reformed Churches. And every country has some of them still.

Well, we've moved away from the Catholic Church. We are the Reformed Churches. But God's actually done a whole lot more since then.

But they've dug their heels in and said, this is what we're sticking with. And so we'll stick to our Reformed theology and then we'll accept things like speaking in tongues because there was a new charismatic movement that began to move in all these churches and people realized speaking in tongues is important. So we'll stay in our tradition.

One of the largest groups of the early charismatic movement were Roman Catholic charismatics. Roman Catholic charismatics. See, they didn't let go of the Catholic doctrine.

They just spoke in tongues. So they'd come pray to Mary while speaking in tongues. Come to the priest to get access to God while speaking in tongues.

Oh, I tell you what, a mixture like that cannot work. Cannot work. Unfortunately, there's so many people doing this.

They're trying to mix the two. Then there's those who are just plain holding on to the old. They refuse to move out of their comfort zone.

Just go onto the internet and you'll find how many people out there are condemning those who believe in speaking in tongues and who believe in the gifts of the spirit because we know the gifts of the spirit were done away. Still sitting in their little comfort zone there and rejecting things like water baptism because early Reformers, they still did it with sprinkling and that is the way it should be done. We're not going to move to the new.

The diehards. Every big denomination out there is of that group. They rose up, moved into something new and then stayed there.

Wouldn't move any further. The third group is those who want to move over to the new. And some of them are so excited about it.

They're running ahead of the Lord and trying to get new revelation themselves and getting into heresy and preaching false doctrine. You'll see them. They're all the extremes out there.

They're throwing out the word and just going by prophetic revelation. There's some weird groups out there, guys. Some weird groups who claim that they're moving with God.

Feeding on the bread now, brother, not the milk anymore. We've got new revelation. Now you got false revelation.

Some, they know that God's doing something new and they fully embraced it. They're standing all on their own. Struggling along on their own.

You're like one little grape trying to make some wine. The scripture says the new wine is in the cluster. Church is a mess, isn't it? Well, you need to make a choice.

You need to decide where you're going to be in all of this. You see, the new wine is always better. That's why the Lord is offering it to us.

God is offering us something new because he wants us to grow up and mature and enter into something better than what we've had until now. But if you want to experience the new, folks, you're going to have to let go of the old. And you're going to have to realize that the new is going to come only in a group.

So now I'm used to standing on my own. I've got this new revelation. I'm serving the Lord.

Just me and my family. We'll push on through until Jesus comes. There's not much wine happening there, folks.

There's not much wine happening there. A couple little grapes. Maybe you get a teaspoon or so of wine there.

Yay! Exciting! No, no, no. We need to have bottlefuls of the stuff so we can start getting it out there and feeding the people. Don't you agree? See, there's no place for solo players in the new church.

There's no place for solo players. Unfortunately, the group that we're looking at that's probably going to get the best results is a small group. Not a large group.

There's been a move in the church, especially in recent years, to gather everybody together, to accumulate. So we need to bring all denominations together. We need to bring everybody together and form one big united church.

But you know, Jesus said, I am the vine and you are the branches. Now, I don't know if you've ever studied a vine that's got grapes on it. But if you do, you'll notice that no grapes actually grow on the vine.

What grows on the vine is branches. And each branch that stems out from the vine produces a bunch of grapes. Now, that means we need to come together because we don't like the small thing, do we? We want the big thing.

I'll tell you what's happening in the large group. The large group is saying, we always did it this way before. Let's carry on doing it that way.

That's what's happening in the large groups. They've settled down in a status quo system that is resistant to the new moves that God wants to do in his church. The Lord wants his church to expand, to rapidly expand.

And instead of us trying to build our big mega churches, we should be building thousands and thousands of small churches. And each one is going to be a bunch of grapes. It's gonna be a cluster that's going to produce the new wine.

And they're gonna be bottles of wine everywhere. We're gonna try and make one big bottle of wine. We say, now you come to me, I got the wine.

And we'll feed each one of you a little bit. Church is in a state that is preventing God from doing the new thing that he wants to do in the earth. I'd like to end by sharing with you a vision that God gave me some years back.

I've actually published this somewhere on our website. I need to find it and give a link for everybody to read it again. I call it the vision of the coming storm.

The Lord gave it to me in a prophetic dream. And I don't get many of this kind of dream, not many at all. I can count on one hand the number I've had during my lifetime.

It was a very startling dream. And the Lord showed it to me at a time when we were having a conference and a get together. We were ministering to the leaders.

But in this dream, I saw that there was a storm, a huge storm. And I saw the waves of the sea rising and tossing and winds blowing, a vicious storm. And as I looked, I saw in the storm, these huge ships tossing and turning in the storm and in these huge waves.

And I saw that these ships were struggling against the storm. And it just continued and continued until I saw these ships beginning to be turned over. I saw a big ship come like this and hit a wave and go all the way over and capsize.

And then I saw as the storm stopped, as I looked, I saw the wrecks. Of all these huge ships, these huge ocean liners, these great big vast ships that carried so many people. And they were wrecks everywhere.

They were shattered on the rocks. They were turned up. They were sitting down like that with the front sticking out of the water.

They were no longer functioning. And I said, Lord, what is going on here? What are you showing me? And then the scene changed. And I saw that the news people were interviewing some guys who were not big names.

They were behind the scenes. But they'd been involved in working with small boats. And I looked and on the water, I saw all these small little boats coming from small little motorboats, fairly large, but they were all small boats.

And every one of them was totally watertight and undamaged. There was a whole fleet of them together that had survived the storm, hadn't been touched. So they interviewed these men who appear to have been somewhat leaders amongst this group.

And they were men of different cultures and different races. And they didn't want to be noticed. They resisted being put on the spot.

They just said what they wanted to say and they disappeared. And then I knew what the Lord was trying to show me. He said, there's a storm coming.

And these big ships thought they were so strong, thought that they were so mighty, they're not going to be able to survive the storm because they're not built for it. Those who survive the storm will be the small boats that are virtually unsinkable. They just rise above the storm.

When the wave comes, they just fly over it. And the Lord said, this is my church. Because the time is coming when the big mega churches who've accumulated such wealth and such resources who are built on big names, on characters who have exalted themselves, they're not going to be able to face that storm.

Now, let's not get this wrong. God's not bringing the storm. God's not bringing the storm.

Satan is bringing the storm. God is not a destroyer. And God will never ever destroy his work.

You just need to look in the news, especially the Christian news today. And every so now and again, such and such a person has resigned from his mega church because he was found to be having an affair, because he was found to be doing something illegal, because something in his life was wrong and has been exposed. The big mega churches are beginning already to crumble.

Oh, but they're big. They've got their own private plants. They look like they're rich in the world.

And everybody loves to go to the mega church. Oh, isn't it awesome? It's like going to a concert where we can all enjoy the whole thing and then go home without anybody even knowing that we were there. You know, unfortunately, a lot of people like that because they don't want to get involved.

They don't want to have to commit themselves in any way to doing anything. So it's great to visit the big mega church. Nobody even noticed that you were there.

And if you didn't attend next Sunday, nobody would notice either. That's a bit more commitment in a small church. Because when you're there, people notice you.

And when you're not there, people notice you didn't come. Where were you on Sunday, my brother? We missed you. We don't like that kind of pressure, do we? I'm telling you, God's gonna build the new church out of small groups.

God is going to destroy the denominations and these large big groups of people who boast in their natural resources and in their strengths. They've had a place, but they are gonna be destroyed. Satan begins to lash out against this body of Christ in this world.

He's gonna hold back nothing. He wants to destroy it. And if you're out there and you're visible, with your big titles, Dr. Apostle, Reverend, you're a target.

Guys in this vision, they were just little nobodies. They didn't take a title. They didn't have a name.

They just did the work. They did it without prejudice. They did it without trying to make a name for themselves.

But they led the body of Christ. And God wants to raise up those kind of leaders. And the Lord has been showing me more and more that he wants to build a new church.

And he wants to build a church that has many, many, many, many different branches. Yes, there must be unity. But you know where our unity comes? It doesn't come in saying, we are going to agree with one another.

We're going to unite our doctrines together. We're going to pander to one another. No, our unity comes in the vine.

See, as we all come closer in our relationship with them, we automatically come closer in our relationship with one another. Now, perhaps you're one of those little leaders out there. And you're feeling very small and insignificant.

You got this little church going. Maybe you just got a little meeting in your home. Maybe you just got a little group at work where you're just sharing with a few people.

And you're thinking, you know, I'm so insignificant. I'm accomplishing so little for the Lord. And I look at all these big churches with the big name preachers who are living in style.

And they're famous. Well, do you know what? God's not against you being famous. See, God's not against you being lifted up.

But what is your motive for these things? The Lord will bring you recognition and fame, as you put him first. He'll raise you up and he'll bring to you those who will recognize your leadership and will follow you. And we can all share the glory together.

It's not going to be me, the big name preacher, who did it all, who gets all the glory. Which do you want to be a part of? Do you want to survive that storm when it comes? Or are you trying so hard to convert your little boat into something bigger so that everybody will notice you? So we don't have to exercise faith every month for money anymore because the finance and the offerings are coming in so fast that we can't spend it fast enough. That's why we got to go and buy a new car and a new plane and everything else.

Is there anything wrong with that? No. If you need that to do what God's called you to do, I believe God can raise up millionaires. I believe God can raise up those in the local church who don't have to belong to a big mega church.

God is calling those to business today who are going to finance the way the work of God. Or do you have to be part of this big mega church before somebody's going to come in and finance your work? Oh, you see what they do? We bring this guy and we say, we'll make you an elder in our big mega church who will give you a name as long as you pour your money into this church. It's the old way of doing things, folks.

It's the old wineskin. It's the old garment. And I just want to end now by challenging you and to ask you, where are you amongst these different kinds of churches, these different kinds of ministries? Have you been trying to stick to the old and try and add a little bit of the new? Or you could end up losing everything.

Have you been digging in your heels and sticking with the old? Well, the Lord bless you. Enjoy your spiritual life, your boring spiritual life. You'll make it to heaven one day.

It won't be terribly exciting. Your whole life would have been one of struggling along and being faithful to the old way of doing things. Hey, if that's the kind of life you want, please feel free.

But I have a feeling I'm not speaking to those kind of people today. I think I'm speaking to somebody who wants to enter into all that the Lord has for you, who's ready to say, I'm going to embrace the new thing that God has. And I don't care if it means I only have a small group of people that will accept it and will follow it.

When I'm going to get in there and we're going to start making our new wine and we're going to encourage others to do the same. The Lord has shown me that I should be training the pastors, showing them the new pattern, helping them to take their little churches and build it according to the new pattern that the Lord is bringing, teaching them to produce the new wine. And if we can get enough of these, we can bring them together in a fellowship.

And hey, if we need a big church meeting, we can fellowship together and we can hire a big hall and we can have a great time. And our day-to-day function doesn't take place in the big mega church meeting on a Sunday. And why are we having meetings on Sunday? Where did that come from? Where did that come from? Well, the early Jews, they met on the Sabbaths.

So now we've made Sunday the Sabbath. We're actually no different to them, are we? We're back to the old Judaistic practices. You're not supposed to work on a Sunday.

You've got to go to church on a Sunday. What about the rest of the week? See, these are some of the changes God wants to make. The Lord has showed us this through our own experiences.

We've tried to build on the old pattern and He won't let it happen because it's not meant to be that way. So I want to encourage each one who's watching this now. If you have a ministry, if you have a calling, start with those who are with you.

Start with your own family. Start with your friends. Invite people to your home.

And since when the laws of the land begin to forbid you to have a big church, you think it's not going to happen in this country? It's already happening. It's a matter of time. And all of these big ships are going to have nowhere to sail anymore.

Are the zero in what God has given you and begin to accumulate to yourself those who are ready to embrace the new wine and do it the new way. And I believe we're going to see this vine flourish we're going to reach the nations for the Lord. There's going to be thousands of little churches everywhere and Satan's not going to be able to touch them.

And that's what I want to be a part of. I trust you want the same. Amen.

Post A Review For This Book