Judges 20:26-28

The people of Israel went to the place of worship at Bethel, where the sacred chest was being kept. They sat on the ground, crying and not eating for the rest of the day. Then about sunset, they offered sacrifices to please the LORD and to ask his blessing. Phinehas the priest then prayed, “Our LORD, the people of Benjamin are our relatives. Should we stop fighting or attack them again?” “Attack!” the LORD answered. “Tomorrow I will let you defeat them.”