en_tn/jdg/03/02.md

He did this to teach warfare to the new generation of the people of Israel who had not known it before

This changes from the main story. The narrator gives background information about why Yahweh left some of the people groups in Canaan. Alternate translation: "Yahweh left nations among the people of Israel to teach the young men who had not fought in battle before how to fight" (See: rc://en/ta/man/jit/writing-background)