And they returned to Joshua, and said unto him, Let not all the people go up; but let about two or three thousand men go up and smite Ai; and make not all the people to labour thither; for they are but few.

But they did not drive out the Canaanites who lived in Gezer, so the Canaanites live among Ephraim to this day, and they became forced laborers.

When the Israelites became strong, they put the Canaanites to forced labor, but they did not drive them out completely.

And I have given you a land for which ye did not labour, and cities which ye built not, and ye dwell in them; of the vineyards and oliveyards which ye planted not do ye eat.