Leviticus 21:1
And the LORD said to Moses, "Speak to the priests, the sons of Aaron, and say to them: No one shall make himself unclean for the dead among his people,
Ezekiel 44:25
They shall not defile themselves by going near to a dead person. However, for father or mother, for son or daughter, for brother or unmarried sister they may defile themselves.
Leviticus 10:6-7
And Moses said to Aaron and to Eleazar and Ithamar his sons, "Do not let the hair of your heads hang loose, and do not tear your clothes, lest you die, and wrath come upon all the congregation; but let your brothers, the whole house of Israel, bewail the burning that the LORD has kindled.
Leviticus 21:11
He shall not go in to any dead bodies nor make himself unclean, even for his father or for his mother.
Numbers 19:14
"This is the law when someone dies in a tent: everyone who comes into the tent and everyone who is in the tent shall be unclean seven days.
Leviticus 19:28
You shall not make any cuts on your body for the dead or tattoo yourselves: I am the LORD.
Numbers 19:16
Whoever in the open field touches someone who was killed with a sword or who died naturally, or touches a human bone or a grave, shall be unclean seven days.
Hosea 5:1
Hear this, O priests! Pay attention, O house of Israel! Give ear, O house of the king! For the judgment is for you; for you have been a snare at Mizpah and a net spread upon Tabor.
Malachi 2:1
"And now, O priests, this command is for you.
Malachi 2:4
So shall you know that I have sent this command to you, that my covenant with Levi may stand, says the LORD of hosts.