John Gills Exposition of the Bible Commentary - Genesis 25:9
And his sons Isaac and Ishmael buried him in the cave of Machpelah ,.... Isaac, though the younger brother, is set first, because he was born of the lawful wife of Abraham, the free woman, whereas Ishmael was born of a concubine and a bondwoman; Isaac was heir not only to Abraham's temporal estate, but of the promise made concerning the Messiah, (not so Ishmael,) and was on all accounts the greater man. It appears from hence, that, though them had been a quarrel between Ishmael and Isaac,... read more
Matthew Henry's Complete Commentary - Genesis 25:1-10
Abraham lived, after the marriage of Isaac, thirty-five years, and all that is recorded concerning him during the time lies here in a very few verses. We hear no more of God's extraordinary appearances to him or trials of him; for all the days, even of the best and greatest saints, are not eminent days, some slide on silently, and neither come nor go with observation; such were these last days of Abraham. We have here, I. An account of his children by Keturah, another wife whom he married... read more