Deuteronomy 31:3-6

“GOD, your God, will cross the river ahead of you and destroy the nations in your path so that you may oust them. (And Joshua will cross the river before you, as GOD said he would.) GOD will give the nations the same treatment he gave the kings of the Amorites, Sihon and Og, and their land; he’ll destroy them. GOD will hand the nations over to you, and you’ll treat them exactly as I have commanded you. “Be strong. Take courage. Don’t be intimidated. Don’t give them a second thought because GOD, your God, is striding ahead of you. He’s right there with you. He won’t let you down; he won’t leave you.”