Matthew Henry on 1 Samuel 29:1-5
Here is, I. The great strait that David was in, which we may suppose he himself was aware of, though we read not of his asking advice from God, nor of any project of his own to get clear of it. The two armies of the Philistines and the Israelites were encamped and ready to engage, Sa1 29:1. Achish, who had been kind to David, had obliged him to come himself and bring the forces he had into his service. David came accordingly, and, upon a review of the army, was found with Achish, in the post assigned him in the rear, Sa1 29:2. Now, 1. If, when the armies engaged, he should retire, and quit his post, he would fall under the indelible reproach, not only of cowardice and treachery, but of base…
Read the whole note in the consoleJamieson-Fausset-Brown on 1 Samuel 29:4
the princes of the Philistines were wroth with him--It must be considered a happy circumstance in the overruling providence of God to rescue David out of the dangerous dilemma in which he was now placed. But David is not free from censure in his professions to Achish (Sa1 29:8), to do what he probably had not the smallest purpose of doing--of fighting with Achish against his enemies. It is just an instance of the unhappy consequences into which a false step--a departure from the straight course of duty--will betray everyone who commits it.
Adam Clarke on 1 Samuel 29:4
The princes of the Philistines were wroth - It is strange that they had not yet heard of David's destruction of a village of the Geshurites, Gezrites, and Amalekites, Sa1 27:8, Sa1 27:9. Had they heard of this, they would have seen much more cause for suspicion.
John Gill on 1 Samuel 29:4
And the princes of the Philistines were wroth with him,.... With Achish, for giving such a character of David, and taking his part, in order to detain him, if possible:
and the princes of the Philistines said unto him, make this fellow return; they speak of him with contempt, and insist on it that Achish order him to turn back, and go no further with them:
that he may go again to his place which thou hast appointed him; to Ziklag, the place that Achish had given him for his residence, 1 Samuel 27:6; they did not desire to have him sent to his own country, and to Saul, since should a reconciliation be made between them, he would be of great service to Saul against them:
and let him not go…