Isaac would have been75 years old and Jacob15 when Abraham died ( Genesis 25:7; cf. Genesis 21:5; Genesis 25:26). [1] Abraham lived100 years in the Promised Land (cf. Genesis 12:4). [source][source][source]
"It is one thing to live a long life. It is another thing to live a long life that is also a happy life. This obituary notice about Abraham draws attention to the fact that Abraham died not only at an elderly age but in a frame of mind filled with inner shalom and satisfaction. That is the thrust of the phrase full of days or "contented."" [2][source]
The phrase "gathered to his people" ( Genesis 25:8) implies reunion in Sheol, the place of departed spirits, with ancestors who had died previously. It presupposes continued personal existence after physical death (cf. Genesis 15:15; Hebrews 11:13). Abraham was buried in the Cave of Machpelah near Mamre, the old site that later became a part of Hebron ( Genesis 25:9). [source][source][source]
God"s dealings now focus on Isaac who then lived near Hagar"s well at Beer-lahai-roi ( Genesis 25:11; cf. Genesis 16:14; Genesis 24:62). Archaelolgists have yet to find this site. It was evidently somewhere south of Beersheba in the Negev. [source][source][source]
God"s servants should do all in their power to ensure the continuation of God"s program to bless from one generation to the next. [source][source][source]