Judges 20:23, 26

The Israelites went up and wept before the LORD until evening, and they inquired of the LORD. They said, “Shall we go up again to fight against the Benjamites, our fellow Israelites?” The LORD answered, “Go up against them.”

Then all the Israelites, the whole army, went up to Bethel, and there they sat weeping before the LORD. They fasted that day until evening and presented burnt offerings and fellowship offerings to the LORD.