Deuteronomy 7:22

And the LORD your God will drive out those nations before you little by little: you may not consume them at once, lest the wild animals of the field become too numerous for you.

Exodus 23:29-30

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

Joshua 15:63

As for the Jebusites the inhabitants of Jerusalem, the children of Judah could not drive them out: but the Jebusites dwell with the children of Judah at Jerusalem unto this day.

Treasury of Scripture Knowledge

Summary

And the LORD thy God will put out those nations before thee by little and little: thou mayest not consume them at once, lest the beasts of the field increase upon thee.

General references

Bible References

Thou mayest

Exodus 23:29
I will not drive them out from before you in one year; lest the land become desolate, and the beasts of the field multiply against you.
Joshua 15:63
As for the Jebusites the inhabitants of Jerusalem, the children of Judah could not drive them out: but the Jebusites dwell with the children of Judah at Jerusalem unto this day.

General references

Deuteronomy 11:23
Then will the LORD drive out all these nations from before you, and you shall possess nations greater and mightier than yourselves.
Joshua 21:44
And the LORD gave them rest round about, according to all that he swore unto their fathers: and there stood not a man of all their enemies before them; the LORD delivered all their enemies into their hand.