Genesis 25:20 Isaac was 40 years old when he took את־ Rebekah as a wife, the daughter of Bethuel, the Syrian of Padan-aram and the אחֹות sister to Laban the Syrian. C-MATS Question: How old was Isaac when he married Rebekah? 40 Genesis 25:21 Isaac prayed to ליהוה for אשְׁתו his wife because she was barren: and יהוה listened to …