Judges 20:18

They set out and went to Bethel to inquire of God. The People of Israel said, “Who of us shall be first to go into battle with the Benjaminites?”

God said, “Judah goes first.”

^19-21 The People of Israel got up the next morning and camped before Gibeah. The army of Israel marched out against Benjamin and took up their positions, ready to attack Gibeah. But the Benjaminites poured out of Gibeah and devastated twenty-two Israelite divisions on the ground.

^22-23 The Israelites went back to the sanctuary and wept before God until evening. They again inquired of God, “Shall we again go into battle against the Benjaminites, our brothers?”

God said, “Yes. Attack.”

^24-25 The army took heart. The men of Israel took up the positions they had deployed on the first day.

On the second day, the Israelites again advanced against Benjamin. This time as the Benjaminites came out of the city, on this second day, they devastated another eighteen Israelite divisions, all swordsmen.