Numbers 18:4-6

The Voice

^3-5 Those Levites will answer to you and help out with the tent as a whole, but they absolutely may not touch the vessels of the sacred place or approach its altar. If they do, they and you will die. Also, an outsider may not approach you. This way, the whole congregation will be forever spared My destructive fury. ⁶ So I hereby appoint, as your assistants, your fellow Levites out of all of the Israelites. I give them to you as persons set apart for Me to do what is necessary for the maintenance of this congregation tent.