Leviticus 23:28-30

Amplified Bible

²⁸ You shall not do any work on this same day, for it is the Day of Atonement, to make atonement on your behalf before the Lord your God. ²⁹ If there is any person who will not humble himself on this same day, he shall be cut off from his people [excluding him from the atonement made for them]. ³⁰ If there is any person who does any work on this same day, I will destroy that person from among his people.