Judges 20:26-27

26Then the whole Israelite army went back to Bethel to meet with the Lord. They sat there and they wept. They did not eat any food that day until evening. They offered burnt offerings and peace offerings to the Lord.

27The Covenant Box was in Bethel at that time. Phinehas, son of Eleazar and grandson of Aaron, was the priest who served the Lord there. The Israelites asked the Lord, ‘Should we march out to fight against our relatives, the men of Benjamin, again? Or should we leave them?’ The Lord said, ‘Attack them. Tomorrow I will put them under your power.’