10 And David arose, and fled that day for fear of Saul, and went to Achish the king of Gath. 11 And the servants of Achish said unto him, Is not this David the king of the land? did they not sing one to another of him in dances, saying, Saul hath slain his thousands, And David his ten thousands? 12 And David laid up these words in his heart, and was sore afraid of Achish the king of Gath. 13 And he changed his behavior before them, and feigned himself mad in their hands, and scrabbled on the doors of the gate, and let his spittle fall down upon his beard. 14 Then said Achish unto his servants, Lo, ye see the man is mad; wherefore then have ye brought him to me? 15 Do I lack madmen, that ye have brought this fellow to play the madman in my presence? shall this fellow come into my house?

Matthew Henry's Commentary on 1 Samuel 21:10-15

Commentary on 1 Samuel 21:10-15

(Read 1 Samuel 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.