1 Samuel 7:5-9

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.