Deuteronomy 20:1-2

King James Version

20 When thou goest out to battle against thine enemies, and seest horses, and chariots, and a people more than thou, be not afraid of them: for the Lord thy God is with thee, which brought thee up out of the land of Egypt.

² And it shall be, when ye are come nigh unto the battle, that the priest shall approach and speak unto the people,