Deuteronomy 21:5
And the priests the sons of Levi shall come near; for them the LORD your God has chosen to minister unto him, and to bless in the name of the LORD; and by their word shall every controversy and every assault be tried:
1 Chronicles 23:13
The sons of Amram; Aaron and Moses: and Aaron was separated, that he should sanctify the most holy things, he and his sons forever, to burn incense before the LORD, to minister unto him, and to give the blessing in his name forever.
Deuteronomy 10:8
At that time the LORD set apart 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 there arise a matter too hard for you in judgment, between bloodsheds, between legal rights, and between assaults, being matters of controversy within your gates: then shall you arise, and get you up into the place which the LORD your God shall choose;
Deuteronomy 18:5
For the LORD your God has chosen him out of all your tribes, to stand to minister in the name of the LORD, him and his sons forever.
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 should preserve knowledge, and they should seek the law from his mouth: for he is the messenger of the LORD of hosts.