Luk 24:27 And beginning with Moses and all the Prophets, he interpreted to them in all the Scriptures the things concerning himself.
Jesus took His two disciples back to the OT starting with Moses’. In the book of Genesis particularly Gen 3:15 is the first prophecy of Him. This speaks of the serpent bruising of His heel, or of the sufferings of death by Him. He shows, from the types, the prophecies, and the Psalms, how that Christ must suffer. He points and explains to them all passages concerning Himself; especially concerning these two points, His sufferings, and His glory.
This is very important because the books of the bible displays clearly the Preeminence of Christ, (Heb 1:2-3). “The preparation of Christ was the Old Testament. The presentation of Christ was the New Testament. In the Old Testament, God spoke in many ways, in many forms through many different individuals. In the New Testament God speaks through His Son and all of the writers of the New Testament are commentators on or historians on His Son.” (John MacArthur). 2Pe 1:20-21 “20 knowing this first of all, that no prophecy of Scripture comes from someone’s own interpretation. 21 For no prophecy was ever produced by the will of man, but men spoke from God as they were carried along by the Holy Spirit.” Jesus came to do the will of the Father. The Bible clearly portrays Jesus as the center of God’s plan and believers as the beneficiaries of His obedience.