Judges 20:14
"But the children of Benjamin gathered themselves together out of the cities unto Gibeah, to go out to battle against the children of Israel."
Cross References (ranked by relevance)
Numbers 21:23
And Sihon would not suffer Israel to pass through his border: but Sihon gathered all his people together, and went out against Israel into the wilderness: and he came to Jahaz, and fought against Israel.
2 Chronicles 13:13
But Jeroboam caused an ambushment to come about behind them: so they were before Judah, and the ambushment was behind them.
Numbers 20:20
And he said, Thou shalt not go through. And Edom came out against him with much people, and with a strong hand.