Leviticus 10:6

“As for the leper who has the infection, his clothes shall be torn, and the hair of his head shall be uncovered, and he shall cover his mustache and call out, ‘Unclean! Unclean!’

‘And the priest who is the highest among his brothers, on whose head the anointing oil has been poured and who has been ordained to wear the garments, shall not uncover his head nor tear his clothes;

“But the Levites shall camp around the tabernacle of the testimony so that there will be no wrath on the congregation of the sons of Israel. So the Levites shall keep charge of the tabernacle of the testimony.”