What does 1 Samuel 27:1 mean?

David thought to himself, 'One of these days, Saul will catch me. The only way I’ll survive is to escape to Philistine territory. Then Saul will stop looking for me in Israel, and I’ll be safe.' 1 Samuel 27:1 - Modern Text Bible

(David realizes Saul won’t give up, so he decides to leave Israel and hide among the Philistines, hoping Saul will stop chasing him.)