28:9 So Esau went to Ishmael and married 1 Mahalath, the sister of Nebaioth and daughter of Abraham’s son Ishmael, along with the wives he already had.
Genesis 17:18
17:18 Abraham said to God, “O that 2 Ishmael might live before you!” 3
Genesis 17:26
17:26 Abraham and his son Ishmael were circumcised on the very same day.
1 tnHeb “took for a wife.”
2 tn The wish is introduced with the Hebrew particle לוּ (lu), “O that.”