NET

3 Samuel said to all the people of Israel, “If you are really turning to the Lord with all your hearts, remove from among you the foreign gods and the images of Ashtoreth. Give your hearts to the Lord and serve only him. Then he will deliver you from the hand of the Philistines.”

Darby

3 And Samuel spoke to all the house of Israel, saying, If ye return to Jehovah with all your heart, put away the strange gods and the Ashtoreths from among you, and apply your hearts unto Jehovah, and serve him only; and he will deliver you out of the hand of the Philistines.

KJV

3 And Samuel spake unto all the house of Israel, saying, If ye do return unto the LORD with all your hearts, [then] put away the strange gods and Ashtaroth from among you, and prepare your hearts unto the LORD, and serve him only: and he will deliver you out of the hand of the Philistines.