John Gills Exposition of the Bible Commentary - 1 Samuel 29:6
Then Achish called David ,.... Being so near him, that he could call unto him himself, or he sent some person to him, to require his presence with him: and said unto him, surely, as the Lord liveth ; or "Jehovah liveth"; an oath by the true God, of whom Achish might have some knowledge, as he also had of angels, from his conversation with David; though the Heathens had a notion of a supreme Being, and yet worshipped other gods, and whom they called Jove, from this name of Jehovah.... read more
Matthew Henry's Complete Commentary - 1 Samuel 29:6-11
If the reasons Achish had to trust David were stronger than the reasons which the princes offered why they should distrust him (as I do not see that, in policy, they were, for the princes were certainly in the right), yet Achish was but one of five, though the chief, and the only one that had the title of king; accordingly, in a council of war held on this occasion, he was over-voted, and obliged to dismiss David, though he was extremely fond of him. Kings cannot always do as they would, nor... read more