Covenant was first mentioned in the account of Noah.
Then God said to Noah and to his sons with him: “I now establish my covenant with you and with your descendants after you and with every living creature that was with you–the birds,the livestock and all the wild animals, all those that came out of the ark with you–every living creature on earth. I establish my covenant with you: Never again will all life be cut off by the water of a flood; never again will there be a flood to destroy the earth.” Genesis 9:8-11
And in Genesis 9:12-17 God established the rainbow as the sign of the covenant between God and Noah and the animals.
Covenant and Abraham
The covenant God made with Abraham was to be carried out through the child to be born of Abraham and Sara; not Eliezer (Genesis 15:1-6); not Ishmael but Isaac (Genesis 17:18-22). And the sign of keeping that covenant with God is male circumcision (Genesis 17:9-14).
Since the destruction of mankind and animals in the flood, despite God saving those who were righteous; people chose evil and not God and righteousness. The account of Sodom and Gomorrah is an account of a city whose people were so perverted that God rained down justice on the city, completely annihilating it with burning sulfur (Genesis 19:24). This account shows clearly the predatory nature of evil that those who are evil are not content to do evil among themselves but seek to defile all those around them. God only allowed evil to go so far.
ISAAC IS BORN!!!!!!!!
God did what he said he would do!! (Genesis 21:1-5) p.41
Abraham’s Faith Response Seals God’s Covenant (Gen 22:15-19) p. 45
Abraham had observed God’s working in his life enough that when God asked him to sacrifice Isaac, the promised son, Abraham set out to do what God asked, believing, “God will provide” (Genesis 22:8).
Abraham was now able to walk by faith, not by sight or circumstances!