John Gills Exposition of the Bible Commentary - 1 Samuel 27:8
And David and his men went up ,.... From Ziklag, where they dwelt: and invaded the Geshurites ; some of the old inhabitants of the land of Canaan, the remains of the Amorites, whose land was given to the half tribe of Manasseh, but could never be expelled; and therefore David had a just right to invade them, and, if he could, either expel or destroy them; see Deuteronomy 3:14 ; these are the Geshurites which are joined with the Philistines, Joshua 13:2 , and the Gezrites ; the... read more
Matthew Henry's Complete Commentary - 1 Samuel 27:8-12
Here is an account of David's actions while he was in the land of the Philistines, a fierce attack he made upon some remains of the devoted nations, his success in it, and the representation he gave of it to Achish. 1. We may acquit him of injustice and cruelty in this action because those people whom he cut off were such as heaven had long since doomed to destruction, and he that did it was one whom heaven had ordained to dominion; so that the thing was very fit to be done, and he was very... read more