Judges 1:17-19

17Then [the warriors of the tribe of] Judah went with [the warriors of the tribe of] Simeon his brother, and they struck the Canaanites living in Zephath and utterly destroyed it. So the city was called Hormah (destruction).

18Also [the warriors of] Judah captured Gaza with its territory and Ashkelon with its territory and Ekron with its territory.

19The Lord was with Judah, and [the tribe of] Judah took possession of the hill country, but they could not dispossess and drive out those inhabiting the valley because they had iron chariots.