And his sons Isaac and Ishmael buried him in the cave of Machpelah, in the field of Ephron the son of Zohar the Hittite, which is before Mamre; His sons Isaac and Ishmael buried him - Though Ishmael and his mother had been expelled from Abraham's family on the account of Isaac, yet, as he was under the same obligation to a most loving affectionate father as his brother Isaac, if any personal feuds remained, they agreed to bury them on this occasion, that both might dutifully join in doing the last offices to a parent who was an honor to them and to human nature: and, considering the rejection of Ishmael from the inheritance, this transaction shows his character in an amiable point of view; for though he was a wild man, (see Genesis 16:12), yet this appellation appears to be more characteristic of his habits of life than of his disposition.
For the character of Abraham see the conclusion of this chapter, Genesis 25:34 (note).