1 Samuel 7:7-10

When the Philistines heard that Israel had assembled at Mizpah, the rulers of the Philistines came up to attack them. When the Israelites heard of it, they were afraid because of the Philistines. They said to Samuel, “Do not stop crying out to the LORD our God for us, that he may rescue us from the hand of the Philistines.” Then Samuel took a suckling lamb and sacrificed it as a whole burnt offering to the LORD. He cried out to the LORD on Israel’s behalf, and the LORD answered him. While Samuel was sacrificing the burnt offering, the Philistines drew near to engage Israel in battle. But that day the LORD thundered with loud thunder against the Philistines and threw them into such a panic that they were routed before the Israelites.