Matthew Henry's Commentary
Then came David to Nob to Ahimelech the priest: and Ahimelech was afraid at the meeting of David, and said unto him, Why art thou alone, and no man with thee?
21:1-9 David, in distress, fled to the tabernacle of God. It is great comfort in a day of trouble, that we have a God to go to, to whom we may open our cases, and from whom we may ask and expect direction. David told Ahimelech a gross untruth. What shall we say to this? The Scripture does not conceal it, and we dare not justify it; it was ill done, and proved of bad consequence; for it occasioned the death of the priests of the Lord. David thought upon it afterward with regret. David had great faith and courage, yet both failed him; he fell thus foully through fear and cowardice, and owing to the weakness of his faith. Had he trusted God aright, he would not have used such a sorry, sinful shift for his own preservation. It is written, not for us to do the like, no, not in the greatest straits, but for our warning. David asked of Ahimelech bread and a sword. Ahimelech supposed they might eat the shew-bread. The Son of David taught from it, that mercy is to be preferred to sacrifice; that ritual observances must give way to moral duties. Doeg set his foot as far within the tabernacle as David did. We little know with what hearts people come to the house of God, nor what use they will make of pretended devotion. If many come in simplicity of heart to serve their God, others come to observe their teachers and to prove accusers. Only God and the event can distinguish between a David and a Doeg, when both are in the tabernacle.
And David said unto Ahimelech the priest, The king hath commanded me a business, and hath said unto me, Let no man know any thing of the business whereabout I send thee, and what I have commanded thee: and I have appointed my servants to such and such a place.
Now therefore what is under thine hand? give me five loaves of bread in mine hand, or what there is present.
And the priest answered David, and said, There is no common bread under mine hand, but there is hallowed bread; if the young men have kept themselves at least from women.
And David answered the priest, and said unto him, Of a truth women have been kept from us about these three days, since I came out, and the vessels of the young men are holy, and the bread is in a manner common, yea, though it were sanctified this day in the vessel.
So the priest gave him hallowed bread: for there was no bread there but the shewbread, that was taken from before the LORD, to put hot bread in the day when it was taken away.
Now a certain man of the servants of Saul was there that day, detained before the LORD; and his name was Doeg, an Edomite, the chiefest of the herdmen that belonged to Saul.
And David said unto Ahimelech, And is there not here under thine hand spear or sword? for I have neither brought my sword nor my weapons with me, because the king's business required haste.
And the priest said, The sword of Goliath the Philistine, whom thou slewest in the valley of Elah, behold, it is here wrapped in a cloth behind the ephod: if thou wilt take that, take it: for there is no other save that here. And David said, There is none like that; give it me.
And David arose, and fled that day for fear of Saul, and went to Achish the king of Gath.
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.
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?
And David laid up these words in his heart, and was sore afraid of Achish the king of Gath.
And he changed his behaviour 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.
Then said Achish unto his servants, Lo, ye see the man is mad: wherefore then have ye brought him to me?
Have I need of mad men, that ye have brought this fellow to play the mad man in my presence? shall this fellow come into my house?