Exodus 31:12-18: “And the Lord spake to Moses, saying, Speak also to the children of Israel, saying, Verily My Sabbaths you shall keep: for it is a sign between Me and you throughout your generations:
that you may know that I am the Lord that does sanctify you. You shall keep the Sabbath therefore; for it is holy to you: every one that defiles it shall surely be put to death: for whosoever does any work therein, that soul shall be cut off from among His people. Six days may work be done: but in the seventh is the Sabbath of rest, holy to the Lord: whosoever does any work in the Sabbath day, he shall surely be put to death. Wherefore the children of Israel shall keep the Sabbath, to observe the Sabbath throughout their generations, for a perpetual covenant. It is a sign between Me and the children of Israel forever: for in six days the Lord made heaven and earth, and on the seventh day He rested, and was refreshed. And He gave to Moses, when He had made an end of communing with him upon Mount Sinai, two tables of testimony, tables of stone, written with the finger of God.” Unchangeable forever, the foundation of God’s government of LOVE. KJV.