Genesis 18:6

Abraham : a son of Terah; the father of Isaac; ancestor of the Jewish nation.,the son of Terah of Shem

Sarah : the wife of Abraham and the mother of Isaac,daughter of Terah; wife of Abraham

Genesis 24:67

Rebekah : daughter of Bethuel, nephew of Abraham

Sarah : the wife of Abraham and the mother of Isaac,daughter of Terah; wife of Abraham