1 Samuele 19:10

And Saul sought to smite David even to the wall with the javelin; but he slipped away out of Saul's presence, and he smote the javelin into the wall: and David fled, and escaped that night. But he slipped away - He found he could not trust Saul; and therefore was continually on his watch. His agility of body was the means of his preservation at this time.