And they drave not out the Canaanites that dwelt in Gezer: but the Canaanites dwell among the Ephraimites unto this day, and serve under tribute.
Drave not out the Canaanites ... serve under tribute. This is the first mention of the fatal policy of the Israelites, in neglecting the divine command (Deuteronomy 20:16) to exterminate the idolaters.