The first promise of a Saviour from sin - Where in the Bible?

---

Genesis 3:14, 15 So the Lord God said to the serpent: “Because you have done this, You are cursed more than all cattle, And more than every beast of the field; On your belly you shall go, And you shall eat dust All the days of your life. 15 And I will put enmity Between you and the woman, And between your seed and her Seed; He shall bruise your head, And you shall bruise His heel.”