The king of the land - The Philistines gave him the title which their own lords bore.

Is not this David? — Some commentators have supposed, but quite needlessly, that it was the sword of Goliath which betrayed the he…

And the servants of Achish said to him
Who knew who David was, and perceiving that he was respected by Achish:

God's persecuted people have often found better treatment from Philistines than from Israelites. David had reason to put confidence in Achish, yet …