Exodus 31:14

14You shall keep the Sabbath, because it is holy for you. Everyone who profanes it shall be put to death. aWhoever does any work on it, that soul shall be cut off from among his people.

Leviticus 17:4

4and bdoes not bring it to the entrance of the tent of meeting to offer it as a gift to the Lord in front of the tabernacle of the Lord, bloodguilt shall be imputed to that man. He has shed blood, and that man cshall be cut off from among his people.
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