Deuteronomy 17:12
12 The man who wacts presumptuously by not obeying the priest xwho stands to minister there before the Lord your God, or the judge, that man shall die. So syou shall purge the evil from Israel.
Deuteronomy 18:5
5 For the Lord your God has chosen him out of all your tribes rto stand and minister in the name of the Lord, him and his sons for all time.
Deuteronomy 18:7
7 and ministers in the name of the Lord his God, ulike all his fellow Levites who stand to minister there before the Lord,