Leviticus 5:2
Or if a person touches anything unclean--whether the carcass of an unclean wild animal or livestock or crawling creature--even if he is unaware of it, he is unclean and guilty.

Leviticus 5:3
Or if he touches human uncleanness--anything by which one becomes unclean--even if he is unaware of it, when he realizes it, he is guilty.

Leviticus 7:21
If one touches anything unclean, whether human uncleanness, an unclean animal, or any unclean, detestable thing, and then eats any of the meat of the peace offering that belongs to the LORD, that person must be cut off from his people."

Leviticus 22:5
or whoever touches a crawling creature or a person that makes him unclean, whatever the uncleanness may be,

Leviticus 22:6
the man who touches any of these will remain unclean until evening. He must not eat from the sacred offerings unless he has bathed himself with water.

Haggai 2:13
So Haggai asked, "If one who is defiled by contact with a corpse touches any of these, does it become defiled?" "Yes, it becomes defiled," the priests answered.