1 Samuel 27:1-2

Amplified Bible, Classic Edition

27 But 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. Then Saul will despair of seeking me any more within the borders of Israel, and I shall escape out of his hand.

² So David arose and went over with the 600 men who were with him to Achish son of Maoch, king of Gath.