What does 1 Samuel 23:13 mean?

So David and his men, about six hundred of them, left Keilah right away. They moved from place to place, never staying long. When Saul heard that David had escaped from Keilah, he gave up chasing him there. 1 Samuel 23:13 - Modern Text Bible

(David doesn't wait around to be betrayed. He and his men leave immediately, always on the move. Saul realizes David is gone and stops his pursuit in that area.)