Ephraim fails to drive out the Canaanites
The tribe of Ephraim did not drive the Canaanites out of Gezer.
Key passages
Jos 16:10

But they did not drive out the Canananites who were dwelling in Gezer, and so the Canaanites live in the midst of Ephraim to this day, but they became forced laborers.

Jdg 1:29

Ephraim did not drive out the Canaanites living in Gezer, so the Canaanites lived in their midst in Gezer.

See also
Ps 106:34–35;