Abraham had married another woman. Her name was Keturah.
Isaac brought Rebekah into the tent that had belonged to his mother Sarah. And he married Rebekah. She became his wife, and he loved her. So Isaac was comforted after his mother died.
She had Zimran, Jokshan, Medan, Midian, Ishbak and Shuah by Abraham.
So Isaac called for Jacob and blessed him. Then he commanded him, “Don’t get married to a Canaanite woman.