Exodus 23:29 in the World English Bible
I will not drive them out from before you in one year, lest the land become desolate, and the animals of the field multiply against you.
Context
28 And I will send hornets before thee, which shall drive out the Hivite, the Canaanite, and the Hittite, from before thee.
29 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.
30 By little and little I will drive them out from before thee, until thou be increased, and inherit the land.