These animals that God declared to be unfit for the people to eat are spoken of as if they were physically dirty. (See: [[rc://en/ta/man/jit/figs-metaphor]])
A person who is unacceptable for God's purposes because he has touched one of these animals is spoken of as if he were physically unclean. (See: [[rc://en/ta/man/jit/figs-metaphor]])