Genesis 21:9-10

9But Sarah asaw the son of Hagar the Egyptian, whom she had borne to Abraham, blaughing.
Possibly  laughing in mockery
10So she said to Abraham, d“Cast out this slave woman with her son, for the son of this slave woman shall not be heir with my son Isaac.”

Genesis 35:29

29And Isaac breathed his last, and he died eand was gathered to his people, old and full of days. And fhis sons Esau and Jacob buried him.

Copyright information for ESV