"And beginning with Moses and all the Prophets, he explained to them what was said in all the Scriptures concerning himself." (Luke 24:27)
That verse is the inspiration for this section. Beginning with the books Moses wrote and continuing through the Old Testament Prophets, beginning to end it testifies of Jesus. So much of the sacrificial system, the Tabernacle and later the Temple, and the Jewish Holy Days also point to His atoning work and help us understand the why of His Death. They also confirm that Jesus is the one and only person who could be the Messiah, because He is the only one who fulfills every prophecy. Check out over 200 prophecies in Matthew and the Messianic prophecies Bible Study that seeks to look at every prophecy about the Messiah.
Then I said, "Here I am, I have come — it is written about me in the scroll.