Leviticus 5:3
If you become unclean by touching human uncleanness of any kind and then ignore it knowing what you did you will be guilty.
Leviticus 12:1-8
Jehovah spoke to Moses:
Leviticus 15:1-33
Again Jehovah spoke to Moses and Aaron:
Numbers 19:11-16
Those who touch a corpse are ritually unclean for seven days.
Leviticus 22:4-6
None of the descendants of Aaron who has a dreaded skin disease or a discharge may eat any of the sacred offerings until he is ritually clean. Any priest is unclean if he touches anything that is unclean through contact with a corpse or if he has an emission of semen
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