Deuteronomy 7:22

And Jehovah thy God hath cast out these nations from thy presence little by little, (thou art not able to consume them hastily, lest the beast of the field multiply against thee),

Exodus 23:29-30

I cast them not out from before thee in one year, lest the land be a desolation, and the beast of the field hath multiplied against thee;

Joshua 15:63

As to the Jebusites, inhabitants of Jerusalem, the sons of Judah have not been able to dispossess them, and the Jebusite dwelleth with the sons of Judah in 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 cast them not out from before thee in one year, lest the land be a desolation, and the beast of the field hath multiplied against thee;
Joshua 15:63
As to the Jebusites, inhabitants of Jerusalem, the sons of Judah have not been able to dispossess them, and the Jebusite dwelleth with the sons of Judah in Jerusalem unto this day.

General references

Deuteronomy 11:23
then hath Jehovah dispossessed all these nations from before you, and ye have possessed nations, greater and mightier than you;
Joshua 21:44
and Jehovah giveth rest to them round about, according to all that which He hath sworn to their fathers, and there hath not stood a man in their presence of all their enemies, the whole of their enemies hath Jehovah given into their hand;