'Priests' in the Bible

He shall kill the young bull before the Lord; and Aaron’s sons the priests shall present the blood and sprinkle the blood around on the altar that is at the doorway of the Tent of Meeting.

Then Aaron’s sons the priests shall arrange the pieces, the head and the fat, on the wood which is on the fire that is on the altar.

He shall kill it on the north side of the altar before the Lord, and Aaron’s sons the priests shall sprinkle its blood around on the altar.

He shall bring it to Aaron’s sons the priests. Out of it he shall take a handful of the fine flour and oil, with all of its frankincense, and the priest shall offer this up in smoke on the altar [of burnt offering] as the memorial portion of it. It is an offering by fire, a sweet and soothing aroma to the Lord.

He shall lay his hand on the head of his offering [transferring symbolically his guilt to the sacrifice] and kill it at the doorway of the Tent of Meeting; and Aaron’s sons the priests shall sprinkle the blood around on the altar.

Every male among the priests may eat this offering; it is most holy.

Every male among the priests may eat it; it shall be eaten in a holy place; it is most holy.

Then Moses said to Aaron and to his [younger] sons Eleazar and Ithamar, “Do not uncover your heads nor let your hair hang loose nor tear your clothes [as expressions of mourning], so that you will not die [also] and so that He will not express His wrath and anger toward all the congregation. But your relatives, the whole house of Israel, may mourn the burning which the Lord has brought about.

Then Aaron shall present the bull as the sin offering for himself, and make atonement for himself and for his house.

“Aaron shall present the bull as the sin offering for himself and make atonement for himself and for his household (the other priests), and he shall kill the bull as the sin offering for himself.

There shall be no person in the Tent of Meeting when the high priest goes in to make atonement in the Holy Place [within the veil] until he comes out, so that he may make atonement for himself (his own sins) and for his household and for all the congregation of Israel.

and make atonement for the Holy Sanctuary, and he shall make atonement for the Tent of Meeting, and for the altar [of burnt offering in the court]. He shall also make atonement for the priests and for all the people of the assembly.

Then the Lord said to Moses, “Speak to the priests, the sons of Aaron, and say to them:‘No one shall defile himself [that is, become ceremonially unclean] for the dead among his people [by touching a corpse or assisting in preparing it for burial],

The priests shall not shave their heads, nor shave off the edges of their beards, nor make any cuts in their body.

Therefore the priests shall observe My ordinance, so that they will not bear sin because of it and die if they profane it; I am the Lord who sanctifies them.

The priests shall not profane the holy things the Israelites offer to the Lord,