Genesis 25:7

“And these [are] the days of the years of Abraham’s life, which he lived, etc.] Being about to die, an account is given of his age, which was an hundred threescore and fifteen years; one hundred and seventy years; so that Isaac was now seventy five years of age, for he was born when Abraham was an hundred years old, and Jacob and Esau must how be fifteen years of age at this time, since they were born when Isaac was sixty years of age, (<012526>Genesis 25:26); and Ishmael must be eighty nine years old; it may be observed, that as Abraham was seventy five years old when he went from Haran into the land of Canaan, (<011204>Genesis 12:4); he had been just an hundred years a sojourner in this…”

“DEATH OF ABRAHAM. (Gen 25:7-11) these are the days of . . . Abraham--His death is here related, though he lived till Jacob and Esau were fifteen years, just one hundred years after coming to Canaan; "the father of the faithful," "the friend of God" [Jam 2:23], died; and even in his death, the promises were fulfilled (compare Gen 15:15). We might have wished some memorials of his deathbed experience; but the Spirit of God has withheld them--nor was it necessary; for (see Mat 7:16) from earth he passed into heaven (Luk 16:22). Though dead he yet liveth (Mat 22:32).”

“25:7-8 Abraham’s death is recorded before the births of Jacob and Esau, but he lived until they were fifteen years old (25:19-26; cp. 21:5; 25:26). This literary arrangement closes Abraham’s story before focusing on Isaac’s family.”