-Does Old and New Testament imply that the New cancels the Old Testament?

*Jesus says:"Do not for a moment suppose that I have come to abrogate the Law or the Prophets:I have not come to abrogate them but to give them their completion" (Matthew 5 :17)

The former Will is like one beginnings of times accomplished by the Christ.

Paul makes many times references that the law is like one pedagogy that drives us to the grace.

The law doesn't save, but it prepares the man's heart to receive the grace. All the history of the exit of Egypt, the path in the desert, the, victories and the struggles, the entry in the promised earth is like one prefiguration of our walk with God, it is also one prefiguration of the walk of the church. While rereading these texts, us, let's learn a lot and in a very pragmatic manner, the walk who conducted to the eternal life.

On the other hand, it is impossible to understand the really sacrifice of Jesus if one didn't read the laws on the sacrifices the importance of blood and How to understand the Christ, Lamb of God, without having read The former Will?