Deuteronomy 20:5-9

5Moreover, the officers are to say to the troops, “Who among you has built a new house and not dedicated it? He may go home, lest he die in battle and someone else dedicate it.

6Or who among you has planted a vineyard and not benefited from it? He may go home, lest he die in battle and someone else benefit from it.

7Or who among you has become engaged to a woman but has not married her? He may go home, lest he die in battle and someone else marry her.”

8In addition, the officers are to say to the troops, “Who among you is afraid and fainthearted? He may go home so that he will not make his fellow soldier’s heart as fearful as his own.”

9Then, when the officers have finished speaking, they must appoint unit commanders to lead the troops.