The Tables of the Covenant

Whoever does any work on the Sabbath day shall be put to death. None of the line of Aaron who is a leper or suffers a discharge may eat of the holy things until he is clean. He never touches anything that is unclean through contact with the dead or a man who has had an emission of semen. Whoever touches a creeping thing, that which he made me made unclean will be cut off from my presence. They shall therefore keep my charge lest they bear sin and die thereby when they profane it. I am the Lord who sanctify them.