Acts 7:8
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.

Genesis 25:20
and Isaac was forty years old when he married Rebekah, the daughter of Bethuel the Aramean from Paddan-aram and the sister of Laban the Aramean.

Genesis 27:36
So Esau declared, "Is he not rightly named Jacob? For he has cheated me twice. He took my birthright, and now he has taken my blessing." Then he asked, "Haven't you saved a blessing for me?"

Genesis 35:28
And Isaac lived 180 years.

Joshua 24:4
and to Isaac I gave Jacob and Esau. I apportioned to Esau the hill country of Seir, but Jacob and his sons went down to Egypt.

1 Chronicles 1:34
Abraham was the father of Isaac. The sons of Isaac: Esau and Israel.

Hosea 12:3
In the womb he grasped his brother's heel, and in his vigor he wrestled with God.