Deuteronomy 20:1-4

“When you go out to battle against your enemies and see horses and 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 near and speak to the people. He shall say to them, ‘Hear, O Israel, you are approaching the battle against your enemies today. Do not be fainthearted. Do not be afraid, or panic, or tremble before them, for the LORD your God is the one who goes with you, to fight for you against your enemies, to save you.’