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.

Treasury of Scripture Knowledge

Summary

I will not drive them out from before thee in one year; lest the land become desolate, and the beast of the field multiply against thee.

Bible References

In one year

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
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
Now these are the nations that Jehovah left to test the Israelites who had not known all the wars of Canaan.

General references

Deuteronomy 6:19
You will throw out all your enemies as Jehovah said.
Deuteronomy 11:23
Then Jehovah will drive out all these nations from before you. You will drive out nations greater and mightier than you.
Deuteronomy 31:4
Jehovah will destroy those people, just as he defeated Sihon and Og, kings of the Amorites, and destroyed their country.
Joshua 17:12
Yet the children of Manasseh could not drive out the inhabitants of those cities; but the Canaanites would dwell in that land.
Joshua 21:43
Jehovah gave to Israel all the land that he had solemnly promised their ancestors he would give them. They took possession of it and settled down there.