1 Samuel 7:8-10

8And the people of Israel said to Samuel, "Do not cease to cry out to the Lord our God for us, that he may save us from the hand of the Philistines."

9So Samuel took a nursing lamb and offered it as a whole burnt offering to the Lord. And Samuel cried out to the Lord for Israel, and the Lord answered him.

10As Samuel was offering up the burnt offering, the Philistines drew near to attack Israel. But the Lord thundered with a mighty sound that day against the Philistines and threw them into confusion, and they were defeated before Israel.