Abraham.

Genesis 21:2, 3
So Sarah conceived and bore a son to Abraham in his old age, at the very time God had promised him. . . .

Matthew 1:2
Abraham was the father of Isaac, Isaac the father of Jacob, and Jacob the father of Judah and his brothers.

Luke 3:34
the son of Jacob, the son of Isaac, the son of Abraham, the son of Terah, the son of Nahor,

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.

The sons of Isaac.

Genesis 25:24-28
When her time came to give birth, there were indeed twins in her womb. . . .

Malachi 1:2-4
"I have loved you, " says the LORD. But you ask, "How have You loved us?" "Was not Esau Jacob's brother?" declares the LORD. "Yet Jacob I have loved, . . .

Romans 9:10-13
Not only that, but Rebecca's children were conceived by one man, our father Isaac. . . .

Israel.

Genesis 32:28
Then the man said, "Your name will no longer be Jacob, but Israel, because you have struggled with God and with men, and you have prevailed."