Deuteronomy 21:5
And the priests the sons of Levi shall come near; for the LORD thy God has chosen them to minister unto him and to bless in the name of the LORD; and by their word shall every controversy and every stroke be determined.
1 Chronicles 23:13
The sons of Amram: Aaron and Moses. And Aaron was separated, that he should be dedicated to the most holy things, he and his sons for ever, to burn incense before the LORD, to minister unto him and to bless in his name for ever.
Deuteronomy 10:8
At that time the LORD separated the tribe of Levi to bear the ark of the covenant of the LORD, to stand before the LORD to minister unto him, and to bless in his name, unto this day.
Numbers 6:22-27
And the LORD spoke unto Moses, saying,
Deuteronomy 17:8-12
If a matter arises that is too difficult for thee in judgment between blood and blood, between plea and plea, and between stroke and stroke, being matters of controversy within thy gates, then thou shalt arise and go up into the place which the LORD thy God shall choose,
Deuteronomy 18:5
for the LORD thy God has chosen him out of all thy tribes to stand to minister unto the name of the LORD, him and his sons all the days.
Deuteronomy 19:17
then both the men, between whom the controversy is, shall stand before the LORD, before the priests and the judges, who shall be in those days;
Malachi 2:7
For the priest's lips keep wisdom, and they seek the law at his mouth; for he is an angel of the LORD of the hosts.