Deuteronomy 20:1-3

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

When you are approaching the battle, the priest shall come forward and speak to the people.

He shall say to them, ‘Hear, Israel, you are approaching the battle against your enemies today. Do not be fainthearted. Do not be afraid, or panic, or be terrified by them,