Jacob: Son of Isaac, and the Twin Brother of Esau

When her time came to give birth, there were indeed twins in her womb. …

…and to Isaac I gave Jacob and Esau. I gave Esau Mount Seir to possess, but Jacob and his sons went down to Egypt.

Abraham was the father of Isaac. The sons of Isaac: Esau and Israel.

Then God gave Abraham the covenant of circumcision, and Abraham became the father of Isaac and circumcised him on the eighth day. And Isaac became the father of Jacob, and Jacob of the twelve patriarchs.