Exodus 31:14-16

Darby Translation

¹⁴ Keep 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.

¹⁵ Six 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.

¹⁶ And the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations—[it is] an everlasting covenant.