Albert Barnes Commentary Judges 1:4

"And Judah went up; and Jehovah delivered the Canaanites and the Perizzites into their hand: and they smote of them in Bezek ten thousand men." — Judges 1:4 (ASV)

The Canaanites and the Perizzites - See Genesis 12:6, note; Genesis 13:7, note. Bezek may be the name of a district. It has not yet been identified.