Leviticus 21 in the early church

Then the LORD said to Moses, “Speak to Aaron’s sons, the priests, and tell them that a priest is not to defile himself for a dead person among his people,

except for his immediate family—his mother, father, son, daughter, or brother,

Priests must not make bald spots on their heads, shave off the edges of their beards, or make cuts in their bodies.

A priest must not marry a woman defiled by prostitution or divorced by her husband, for the priest is holy to his God.

If a priest’s daughter defiles herself by prostituting herself, she profanes her father; she must be burned in the fire.

The priest who is highest among his brothers, who has had the anointing oil poured on his head and has been ordained to wear the priestly garments, must not let his hair hang loose or tear his garments.

He must not go near any dead body; he must not defile himself, even for his father or mother.

He must not leave or desecrate the sanctuary of his God, for the consecration of the anointing oil of his God is on him. I am the LORD.

The woman he marries must be a virgin.

He is not to marry a widow, a divorced woman, or one defiled by prostitution. He is to marry a virgin from his own people,

so that he does not defile his offspring among his people, for I am the LORD who sanctifies him.”

“Say to Aaron, ‘For the generations to come, none of your descendants who has a physical defect may approach to offer the food of his God.

No descendant of Aaron the priest who has a defect shall approach to present the food offerings to the LORD. Since he has a defect, he is not to come near to offer the food of his God.