But they did not drive out the Canaanites who lived in Gezer, but the Canaanites dwell in the midst of Ephraim to this day and have become servants to do forced labor.
“did not drive out the Canaanites who lived in Gezer.” This happened in other cities in Israel as well (cp. Josh. 15:63; Judg. 1:21, 27-36).