Leviticus 6:20

6:20 “This is the offering of Aaron and his sons which they must present to the Lord on the day when he is anointed: a tenth of an ephah of choice wheat flour as a continual grain offering, half of it in the morning and half of it in the evening.

Leviticus 11:32

11:32 Also, anything they fall on when they die will become unclean – any wood vessel or garment or article of leather or sackcloth. Any such vessel with which work is done must be immersed in water and will be unclean until the evening. Then it will become clean.

Leviticus 17:15

Regulations for Eating Carcasses

17:15 “‘Any person who eats an animal that has died of natural causes or an animal torn by beasts, whether a native citizen or a foreigner, must wash his clothes, bathe in water, and be unclean until evening; then he becomes clean.