Exodus 31:15 Six days may work be done; but in the seventh is the sabbath of rest, holy to the Lord: whosoever doeth any work in the sabbath day, he shall surely be put to death. 12 I MC VC

Leviticus 16:31 It shall be a sabbath of rest unto you, and ye shall afflict your souls, by a statute for ever. 22 I MC VC