The seed promise
In Genesis 3, in the middle of the curse, God speaks to the serpent: "I will put enmity between thee and the woman, and between thy seed and her seed; he shall bruise thy head, and thou shalt bruise his heel." The word is zera — seed, offspring, descendants — and once it is said, the Bible keeps following it. It runs to Abraham ("in thy seed shall all the nations of the earth be blessed"), and on down the line of promise. It is the first hint of rescue in the book, and it is spoken before the first exile from the garden.
“And I will put enmity between you and the woman, and between your seed and her seed. He will crush your head, and you will strike his heel.””
Genesis 3:15 — the seed of the woman→
“And through your offspring all nations of the earth will be blessed, because you have obeyed My voice.””
Genesis 22:18 — "in thy seed shall all the nations be blessed"→