You shall dress them with belts, Aharon and his sons, and bind headbands on them: and they shall have the priesthood by a perpetual statute: and you shall consecrate Aharon and his sons.
and he spoke to Korach and to all his company, saying, In the morning the LORD will show who are his, and who is holy, and will cause him to come near to him: even him whom he shall choose he will cause to come near to him.
and it shall be to him, and to his seed after him, the covenant of an everlasting priesthood; because he was jealous for his God, and made atonement for the children of Yisra'el.
At that time the LORD set apart the tribe of Levi, to bear the ark of the covenant of the LORD, to stand before the LORD to minister to him, and to bless in his name, to this day.
The man who does presumptuously, in not listening to the Kohen who stands to minister there before the LORD your God, or to the judge, even that man shall die: and you shall put away the evil from Yisra'el.