Not in the city, for that was not yet taken, Judges 1:5, but in the territory of it, or near to it; as in Hor is taken, Numbers 33:37; and in Jericho, Joshua 5:13.
Related Commentaries of Judges 1:4
Judges 1:4
4 And Judah went up; and the LORD delivered the Canaanites and the Perizzites into their hand: and they slew of them in Bezek ten thousand men.