Exodus 23:30

But a little and a little I will drive them out before thee, until thou be increased that thou mayest inherit the land.

Treasury of Scripture Knowledge

By little and little I will drive them out from before thee, until thou be increased, and inherit the land.

and that the LORD may cast out all thine enemies before thee as he hath said.

then will the LORD cast out all these nations; and ye shall conquer them which are both greater and mightier than yourselves.

And the LORD shall do unto them, as he did to Sihon and Og, kings of the Amorites, and unto their lands - which kings he destroyed.

yet the children of Manasseh could not overcome those cities, but the Cananites began to dwell in the same land.

And the LORD gave unto Israel all the land which he sware to give unto their fathers. And they conquered it, and dwelt therein.