1 Samuel 7:2-10

The Ark stayed at Kiriath Jearim a long time—twenty years in all. And the people of Israel began to follow the LORD again. Samuel spoke to the whole group of Israel, saying, “If you’re turning back to the LORD with all your hearts, you must remove your foreign gods and your idols of Ashtoreth. You must give yourselves fully to the LORD and serve only him. Then he will save you from the Philistines.” So the Israelites put away their idols of Baal and Ashtoreth, and they served only the LORD. Samuel said, “All Israel must meet at Mizpah, and I will pray to the LORD for you.” So the Israelites met together at Mizpah. They drew water from the ground and poured it out before the LORD and fasted that day. They confessed, “We have sinned against the LORD.” And Samuel served as judge of Israel at Mizpah. The Philistines heard the Israelites were meeting at Mizpah, so the Philistine kings came up to attack them. When the Israelites heard they were coming, they were afraid. They said to Samuel, “Don’t stop praying to the LORD our God for us! Ask him to save us from the Philistines!” Then Samuel took a baby lamb and offered it to the LORD as a whole burnt offering. He called to the LORD for Israel’s sake, and the LORD answered him. While Samuel was burning the offering, the Philistines came near to attack Israel. But the LORD thundered against them with loud thunder. They were so frightened they became confused. So the Israelites defeated the Philistines in battle.