21:11 King of the land - Of Canaan. They call him king, either more generally for the governor, the most eminent captain and commander, or, as the king elect, the person designed to be king: for, by this time, the fame of Saul's rejection, and David's destination to the kingdom, was got abroad among the Israelites, and from them, probably to the Philistines. Did they not sing, and c. - And therefore consider what to do; and now our great enemy is in thy hand, be sure thou never let him go alive.
21:10-15 God's persecuted people have often found better usage from Philistines than from Israelites. David had reason to put confidence in Achish, yet he began to be afraid. His conduct was degrading, and discovered wavering in his faith and courage. The more simply we depend on God, and obey him, the more comfortably and surely we shall walk through this troublesome world.