Isaac was weaned at about five, was as good as offered up as a sacrifice at perhaps twenty-five, was married at forty, became father to twin sons at sixty, and died at the age of 180.—Gen. 21:2-8; 22:2; 25:20, 26; 35:28.
... Isaac was buried in the same cave of Machpelah where his parents and wife, and later his son Jacob, were buried.—Gen. 26:34, 35; 27:46; 28:1-5; 35:27-29; 49:29-32.