Deuteronomy 10:8

10:8 At that time the Lord set apart the tribe of Levi to carry the ark of the Lord’s covenant, to stand before the Lord to serve him, and to formulate blessings in his name, as they do to this very day.

Zechariah 3:1-7

Vision Four: The Priest

3:1 Next I saw Joshua the high priest standing before the angel of the Lord, with Satan standing at his right hand to accuse him. 3:2 The Lord said to Satan, “May the Lord rebuke you, Satan! May the Lord, who has chosen Jerusalem, rebuke you! Isn’t this man like a burning stick snatched from the fire?” 3:3 Now Joshua was dressed in filthy clothes as he stood there before the angel. 3:4 The angel spoke up to those standing all around, “Remove his filthy clothes.” Then he said to Joshua, “I have freely forgiven your iniquity and will dress you in fine clothing.” 3:5 Then I spoke up, “Let a clean turban be put on his head.” So they put a clean turban on his head and clothed him, while the angel of the Lord stood nearby. 3:6 Then the angel of the Lord exhorted Joshua solemnly: 3:7 “The Lord who rules over all says, ‘If you live and work according to my requirements, you will be able to preside over my temple and attend to my courtyards, and I will allow you to come and go among these others who are standing by you.