Thus they shall keep charge of the tent of meeting and the sanctuary, and shall attend the sons of Aaron, their brethren, for the service of the house of the Lord.”
And you and your sons with you shall attend to your priesthood for all that concerns the altar and that is within the veil; and you shall serve. I give your priesthood as a gift, and any one else who comes near shall be put to death.”
but minister to their brethren in the tent of meeting, to keep the charge, and they shall do no service. Thus shall you do to the Levites in assigning their duties.”