Exodus 23:28-30

28And a  I will send hornets
Or the hornet
before you, which shall drive out the Hivites, the Canaanites, and the Hittites from before you.
29 c  I will not drive them out from before you in one year, lest the land become desolate and the wild beasts multiply against you. 30Little by little I will drive them out from before you, until you have increased and possess the land.
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