1 Chronicles 15:12

15:12 He told them: “You are the leaders of the Levites’ families. You and your relatives must consecrate yourselves and bring the ark of the Lord God of Israel up to the place I have prepared for it.

1 Chronicles 23:13

23:13 The sons of Amram:

Aaron and Moses.

Aaron and his descendants were chosen on a permanent basis to consecrate the most holy items, to offer sacrifices before the Lord, to serve him, and to praise his name. 1 

1 tn Heb “and Aaron was set apart to consecrate it, the most holy things, he and his sons, permanently, to sacrifice before the Lord, to serve him, and to bless his name permanently.”