Deuteronomy 16:18דברים ט״ז:י״ח
You shall appoint magistrates and officials for your tribes, in all the settlements that your God יהוה is giving you, and they shall govern the people with due justice.
Deuteronomy 17:8דברים י״ז:ח׳
If a case is too baffling for you to decide, be it a controversy over homicide, civil law, or assault—matters of dispute in your courts—you shall promptly repair to the place that your God יהוה will have chosen,
Deuteronomy 20:2דברים כ׳:ב׳
Before you join battle, the priest shall come forward and address the troops.
Deuteronomy 20:5דברים כ׳:ה׳
Then the officials shall address the troops, as follows: “Is there anyone who has built a new house but has not dedicated it? Let him go back to his home, lest he die in battle and another dedicate it.
Deuteronomy 20:8דברים כ׳:ח׳
The officials shall go on addressing the troops and say, “Is there anyone afraid and disheartened? Let him go back to his home, lest the courage of his comrades flag like his.”