This entry is in the series of Thirty-Nine Reasons Jesus Came to Die, concerning the Book of Genesis.
Genesis describes the Creation Event, the Fall, the Flood, and the Dispersion of mankind, and the calling of Israel. All of these are hugely important parts of the book, but Jesus is seen most clearly in fulfilling the following prophecy,
I will put enmity between you (Satan) and the woman (Eve),
__and between your offspring and her offspring;
he shall bruise your head,
__and you shall bruise his heel. – Genesis 3:15
Throughout Genesis we see this offspring anticipated. Cain is the first expected Messiah, "I have gotten a man with the help of the LORD", but hope in him is dashed when he murders his brother. Seth comes into the world with such a declaration, "God has appointed for me another offspring instead of Abel, for Cain killed him." Seth, in time, proved not to be the Messiah either (Genesis 5:8).
Throughout Genesis it continues:
Esau, Jacob? No and no.
Joseph? Nearly, but no.
Luke shows this expectation in his gospel by taking us straight up the lineage of Jesus to Adam (Luke 3:23-38); Jesus is the promised offspring, the perfect Son of Man, who crushed the head of Satan by the power of his Resurrection.
"Now the salvation and the power and the kingdom of our God and the authority of his Christ have come, for the Accuser of our brothers has been thrown down..." – Revelation 12:10