John Gill's Bible Commentary Ver. 4. Then David inquired of the Lord yet again , etc.] Not for his own sake, who firmly believed it was the will of God he should go and succeed, but for the sake of his men, and to remove the doubts and fears that hung on their minds: and the Lord answered him, and said, arise, go down to Keilah ; immediately, make no stay, nor hesitate about it, but go with all haste to the relief of the place: for I will deliver the Philistines into thine hands ; which is still more explicit, and is a promise not only of delivering Keilah out of the hands of the Philistines, but of delivering them into David’s hands, and so of an entire: victory; and therefore none of David’s men had anything to fear after such a declaration of the will of God.
Matthew Henry Commentary
Verses 1-6 - When princes persecute God's people, let them expect vexation on all sides. The way for any country to be quiet, is to let God's church be quiet in it: if Saul fight against David, the Philistines fight agains his country. David considered himself the protector of the land. Thu did the Saviour Jesus, and left us an example. Those are unlike David who sullenly decline to do good, if they are not rewarded for services.
Original Hebrew ויוסף3254 עוד5750 דוד1732 לשׁאל7592 ביהוה3068 ויענהו6030 יהוה3068 ויאמר559 קום6965 רד3381 קעילה7084 כי3588 אני589 נתן5414 את853 פלשׁתים6430 בידך׃3027