Deuteronomy 31:4-6

Douay-Rheims 1899 American Edition

⁴ And the Lord shall do to them as he did to Sehon and Og the kings of the Amorrhites, and to their land, and shall destroy them.

⁵ Therefore when the Lord shall have delivered these also to you, you shall do in like manner to them as I have commanded you,

⁶ Do manfully and be of good heart: fear not, nor be ye dismayed at their sight: for the Lord thy God he himself is thy leader, and will not leave thee nor forsake thee.