Bethuel.

Genesis 24:15, 24, 47
Before he had finished praying, Rebekah came out with her jar on her shoulder. She was the daughter of Bethuel son of Milcah, the wife of Abraham's brother Nahor. . . .

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 28:2, 5
"Go at once to Paddan-aram, to the house of your mother's father Bethuel, and take a wife from among the daughters of Laban, your mother's brother. . . .

Rebekah.

Genesis 24:51, 60, 67
Rebekah is here before you. Take her and go, and let her become the wife of your master's son, just as the LORD has decreed." . . .

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

Rebecca.