Judges 20:22-23, 26

The Israelites went before the LORD and cried until evening. They asked the LORD, “Shall we go to fight our relatives, the Benjaminites, again?” The LORD answered, “Go up and fight them.” The men of Israel encouraged each other. So they took the same battle positions they had taken the first day.

Then the Israelites went up to Bethel. There they sat down and cried to the LORD and fasted all day until evening. They also brought burnt offerings and fellowship offerings to the LORD.