Traditionally, the Old Testament is considered to have three parts — the Law (the five books of Moses), the Prophets, and the Wisdom Literature (here referred to by its chief book, the Psalms). Thus Jesus sees himself as the fulfillment of it all. Literally everything in the Bible is about him.
The Bible can only be understood if it is seen to be about him. So, Jesus fulfills the Prophets, who said the Messiah will be God (Isaiah 9), and will suffer and be killed (Isaiah 53). He fulfills all the ceremonial law since he is the sacrifice, the priest, and the temple to which all the ritual pointed. He fulfills the moral law for he alone lived it personally, exemplifying righteousness, and doing it all as our substitute, satisfying it for us. He even fulfills all the history of the Bible: he is the true prophet, the true priest, the true king to which all prophets, priests, and kings point. He is the seed of Abraham, David’s greater son, the true Jonah greater than Jonah, the true Solomon greater than Solomon.
In John 5 when Jesus is speaking to the Jewish leaders he tells them in verse 39: “You study the Scriptures diligently because you think that in them you have eternal life. These are the very Scriptures that testify about me.” In other words, the Bible in its entirety is all about Jesus, and the basic message of the Bible is that the Messiah has to suffer in order to redeem everything.
So, the Bible is not primarily a set of rules or a philosophy of life. Rather, Jesus is telling us in Luke 24 and John 5 that the Bible is primarily an account of what’s wrong with us, of what God planned to do about it, and about what he has done about it in history through the life, death, and resurrection of Jesus Christ.
– Tim Keller