Deuteronomy 7:21-23

Young's Literal Translation

²¹ thou art not terrified by their presence, for Jehovah thy God [is] in thy midst, a God great and fearful.

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),

²³ and Jehovah thy God hath given them before thee, and destroyed them -- a great destruction -- till their destruction;