Deuteronomy 20:2

1When you go out to battle against your enemies, and see horses, chariots, and a people more numerous than you, you shall not be afraid of them; for the LORD your God, who brought you up out of the land of Egypt, is with you.

2It shall be, when you draw near to the battle, that the priest shall approach and speak to the people,

3and shall tell them, “Hear, Israel, you draw near today to battle against your enemies. Don’t let your heart faint! Don’t be afraid, nor tremble, neither be scared of them;

4for the LORD your God is he who goes with you, to fight for you against your enemies, to save you.”