Exodus 31
14 Ref and ye have kept the sabbath, for it `is' holy to you, he who is polluting it is certainly put to death -- for any who doeth work in it -- that person hath even been cut off from the midst of his people.
15 Ref `Six days is work done, and in the seventh day `is' a sabbath of holy rest to Jehovah; any who doeth work in the sabbath-day is certainly put to death,
16 Ref and the sons of Israel have observed the sabbath; to keep the sabbath to their generations `is' a covenant age-during,
17 Ref between Me and the sons of Israel it `is' a sign -- to the age; for six days Jehovah made the heavens and the earth, and in the seventh day He hath ceased, and is refreshed.'