John Gills Exposition of the Bible Commentary - Genesis 25:18
And they dwelt from Havilah unto Shur ,.... That is, the posterity of Ishmael, whose country reached from one place to the other; not from India to Chaluza, as the Targums of Jonathan and Jerusalem; but the extent is that vast desert of Arabia, which eastward was called the wilderness of Havilah, and westward the wilderness of Shur; so that they inhabited it from east to west: that is before Egypt, as thou goest to Assyria ; which last place was over against Egypt, and bordered on that... read more
Matthew Henry's Complete Commentary - Genesis 25:11-18
Immediately after the account of Abraham's death, Moses begins the story of Isaac (Gen. 25:11), and tells us where he dwelt and how remarkably God blessed him. Note, The blessing of Abraham did not die with him, but survived to all the children of the promise. But he presently digresses from the story of Isaac, to give a short account of Ishmael, forasmuch as he also was a son of Abraham, and God had made some promises concerning him, which it was requisite we should know the accomplishment... read more