Deuteronomy 20:1-9

“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 is with you, who brought you up from the land of Egypt. So it shall be, when you are on the verge of battle, that the priest shall approach and speak to the people. And he shall say to them, ‘Hear, O Israel: Today you are on the verge of battle with your enemies. Do not let your heart faint, do not be afraid, and do not tremble or be terrified because of them; for the LORD your God is He who goes with you, to fight for you against your enemies, to save you.’ “Then the officers shall speak to the people, saying: ‘What man is there who has built a new house and has not dedicated it? Let him go and return to his house, lest he die in the battle and another man dedicate it. Also what man is there who has planted a vineyard and has not eaten of it? Let him go and return to his house, lest he die in the battle and another man eat of it. And what man is there who is betrothed to a woman and has not married her? Let him go and return to his house, lest he die in the battle and another man marry her.’ “The officers shall speak further to the people, and say, ‘What man is there who is fearful and fainthearted? Let him go and return to his house, lest the heart of his brethren faint like his heart.’ And so it shall be, when the officers have finished speaking to the people, that they shall make captains of the armies to lead the people.