Exodus 31:12-18

12And Jehovah spoke to Moses, saying, 13And thou, speak thou unto the children of Israel, saying, Surely my sabbaths shall ye keep; for this is a sign between me and you throughout your generations, that ye may know that it is I, Jehovah, who do hallow you. 14Keep the sabbath, therefore; for it is holy unto you; every one that profaneth it shall certainly be put to death: yea, whoever doeth work on it, that soul shall be cut off from among his peoples. 15Six days shall work be done; but on the seventh day is the sabbath of rest, holy to Jehovah: whoever doeth work on the sabbath day shall certainly be put to death. 16And the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations — [it is] an everlasting covenant. 17It shall be a sign between me and the children of Israel for ever; for [in] six days Jehovah made the heavens and the earth, and on the seventh day he rested, and was refreshed. 18And he gave to Moses, when he had ended speaking with him on mount Sinai, the two tables of testimony, tables of stone, written with the finger of 1God.