271 And David said to himself, Some day death will come to me by the hand of Saul: the only thing for me to do is to get away into the land of the Philistines; then Saul will give up hope of taking me in any part of the land of Israel: and so I may be able to get away from him. 2 So David and the six hundred men who were with him went over to Achish, the son of Maoch, king of Gath. 3 And David and his men were living with Achish at Gath; every man had his family with him, and David had his two wives, Ahinoam of Jezreel, and Abigail of Carmel, who had been the wife of Nabal. 4 And Saul, hearing that David had gone to Gath, went after him no longer.
Matthew Henry's Commentary on 1 Samuel 27:1-4
Commentary on 1 Samuel 27:1-7
(Read 1 Samuel 27:1-7)
Unbelief is a sin that easily besets even good men, when without are fightings, and within are fears; and it is a hard matter to get over them. Lord, increase our faith! We may blush to think that the word of a Philistine should go further than the word of an Israelite, and that the city of Gath should be a place of refuge for a good man, when the cities of Israel refuse him a safe abode. David gained a comfortable settlement, not only at a distance from Gath, but bordering upon Israel, where he might keep up a correspondence with his own countrymen.