Exodus 31:12-14

21st Century King James Version

¹³ “Speak thou also unto the children of Israel, saying, ‘Verily My Sabbaths ye shall keep; for it is a sign between Me and you throughout your generations, that ye may know that I am the Lord who doth sanctify you.

¹⁴ Ye shall keep the Sabbath therefore, for it is holy unto you. Every one who defileth it shall surely be put to death; for whosoever doeth any work therein, that soul shall be cut off from among his people.