Leviticus 22:5-8

⁵Or anyone touching any unclean thing which goes flat on the earth, or someone by whom he may be made unclean in any way whatever;

⁶Any person touching any such unclean thing will be unclean till evening, and may not take of the holy food till his flesh has been bathed in water;

⁷And when the sun has gone down he will be clean; and after that he may take part in the holy food, because it is his bread.

⁸That which comes to a natural death, or is attacked by beasts, he may not take as food, for it will make him unclean: I am the Lord.