Deuteronomy 20:1-4

ASV(i) 1 When thou goest forth to battle against thine enemies, and seest horses, and chariots, [and] a people more than thou, thou shalt not be afraid of them; for Jehovah thy God is with thee, who brought thee up out of the land of Egypt. 2 And it shall be, when ye draw nigh unto the battle, that the priest shall approach and speak unto the people, 3 and shall say unto them, Hear, O Israel, ye draw nigh this day unto battle against your enemies: let not your heart faint; fear not, nor tremble, neither be ye affrighted at them; 4 for Jehovah your God is he that goeth with you, to fight for you against your enemies, to save you.