Exodus 31:14-16

Amplified Bible, Classic Edition

¹⁴ You shall keep the Sabbath therefore, for it is holy to you; everyone who profanes it shall surely be put to death; for whoever does work on the Sabbath shall be cut off from among his people.

¹⁵ Six days may work be done, but the seventh is the Sabbath of rest, sacred to the Lord; whoever does work on the Sabbath day shall surely be put to death.

¹⁶ Wherefore the Israelites shall keep the Sabbath to observe it throughout their generations, a perpetual covenant.