David said in his heart, I shall now perish one day by the hand of Saul: there is nothing better for me than that I should escape into the land of the Philistines; and Saul will despair of me, to seek me any more in all the borders of Israel: so shall I escape out of his hand.
and Saul shall despair of me, to seek me any more in any coast of Israel; hearing that he was gone into a foreign country, would seek for him no more in any part of the land of israel, and so despair of ever getting him into his hands, would lay aside all thoughts about him for the future: