1 Samuel 27:1

Then David said in his heart , Now I shall perish one day by the hand of Saul . There is nothing better for me than that I should escape to the land of the Philistines . Then Saul will despair of seeking me any longer within the borders of Israel , and I shall escape out of his hand .

But David thought to himself, “One of these days I will be destroyed by the hand of Saul. The best thing I can do is to escape to the land of the Philistines. Then Saul will give up searching for me anywhere in Israel, and I will slip out of his hand.”

And 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 speedily escape into the land of the Philistines; and Saul shall despair of me, to seek me any more in any coast of Israel : so shall I escape out of his hand.