Genesis 25:7

Abraham died at the good old age of 175, and was "gathered to his people." This expression, which is synonymous with "going to his fathers" (Gen 15:15), or "being gathered to his fathers" (Jdg 2:10), but is constantly distinguished from departing this life and being buried, denotes the reunion in Sheol with friends who have gone before, and therefore presupposes faith in the personal continuance of a man after death, as a presentiment which the promises of God had exalted in the case of the patriarchs into a firm assurance of faith (Heb 11:13).

The sacred historian, in this chapter, I. Takes his leave of Abraham, with an account, I. Of his children by another wife (Gen 25:1-4). 2. Of his last will and testament (Gen 25:5, Gen 25:6). 3. Of his age, death, and burial (Gen 25:7-10). II. He takes his leave of Ishmael, with a short account, 1. Of his children (Gen 25:12-16). 2. Of his age and death (Gen 25:17, Gen 25:18). III. He enters upon the history of Isaac. 1. His prosperity (Gen 25:11). 2. The conception and birth of his two sons, with the oracle of God concerning them (Gen 25:19-26). 3. Their different characters (Gen 25:27, Gen 25:28). 4. Esau's selling his birthright to Jacob (Gen 25:29-34).

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.