[12] Then the LORD said to Moses, [13] “Say to the Israelites, ‘You must observe my Sabbaths. This will be a sign between me and you for the generations to come, so you may know that I am the LORD, who makes you holy. [14] “ ‘Observe the Sabbath, because it is holy to you. Anyone who desecrates it is to be put to death; those who do any work on that day must be cut off from their people. [15] For six days work is to be done, but the seventh day is a day of sabbath rest, holy to the LORD. Whoever does any work on the Sabbath day is to be put to death. [16] The Israelites are to observe the Sabbath, celebrating it for the generations to come as a lasting covenant. [17] It will be a sign between me and the Israelites forever, for in six days the LORD made the heavens and the earth, and on the seventh day he rested and was refreshed.’ ”