Deuteronomy 31:3-5

Revised Standard Version

³ The Lord your God himself will go over before you; he will destroy these nations before you, so that you shall dispossess them; and Joshua will go over at your head, as the Lord has spoken. ⁴ And the Lord will do to them as he did to Sihon and Og, the kings of the Amorites, and to their land, when he destroyed them. ⁵ And the Lord will give them over to you, and you shall do to them according to all the commandment which I have commanded you.