Exodus 23:29
I will not drive them out within a year's time. If I did, the land would become deserted. There would be too many wild animals for you.
Deuteronomy 7:22
Jehovah your God will drive out these nations before you little by little. You will not be able to put an end to them quickly. This is because the wild beasts are too numerous (and will multiply) around you.
Joshua 15:63
As for the Jebusites the inhabitants of Jerusalem, the children of Judah could not drive them out. The Jebusites dwell with the children of Judah at Jerusalem to this day.
Joshua 16:10
They did not drive out the Canaanites that dwelt in Gezer: but the Canaanites dwell among the Ephraimites to this day, and have become forced laborers.
Joshua 17:12-13
Yet the children of Manasseh could not drive out the inhabitants of those cities; but the Canaanites would dwell in that land.
Judges 3:1-4
Now these are the nations that Jehovah left to test the Israelites who had not known all the wars of Canaan.