Devarim 20:1-3

Orthodox Jewish Bible

20 When thou goest out to milchamah against thine enemies, and seest sus (horses), and chariots, and a people more than thou, be not afraid of them; for Hashem Eloheicha is with thee, which brought thee up out of Eretz Mitzrayim.

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

³ And shall say unto them, Shema, Yisroel, ye approach today unto milchamah against your enemies; let not your hearts faint; fear not, and do not tremble, neither be ye terrified because of them;