What does 1 Samuel 7:3 mean?

Samuel told everyone in Israel, 'If you really want to come back to the Lord with all your heart, get rid of the foreign gods and the idols of Ashtoreth. Commit yourselves to the Lord and serve him only, and he’ll save you from the Philistines.' 1 Samuel 7:3 - Modern Text Bible

(Samuel calls the people to turn away from other gods and fully commit to God if they want his help and protection.)