Why do we celebrate Christmas one way when the Bible presents it in four?
 
Why does God show himself in the Old Testament in four colours, four creatures, four offices, and four offerings? 
 
Why are there four different gospels, and not three or one?
 
God is one. Three in one. Yet the claim of this book is that he reveals himself in four main aspects. To grasp this fully will energise your prayer life, inform your worship, deepen your appreciation of other Christian groupings, and sharpen your presentation of the gospel of Jesus Christ.