Deuteronomy 20:1-4

1When thou goest out to war against thine enemies, and seest horses, and chariots, [and] a people more numerous than thou, thou shalt not fear them; for Jehovah thy 1God is with thee, who brought thee up out of the land of Egypt.

2And it shall be, when ye approach unto the battle, that the priest shall draw near and speak unto the people,

3and shall say unto them, Hear, Israel, ye are approaching this day unto battle against your enemies: let not your hearts faint, fear not, and do not tremble, neither be afraid of them;

4for Jehovah your 2God is he that goeth with you, to fight for you against your enemies, to save you.