Exodus 31:13-17 New American Bible (Revised Edition) (NABRE)
13 You must also tell the Israelites: Keep my sabbaths, for that is to be the sign between you and me throughout the generations, to show that it is I, the Lord, who make you holy. 14 [a]Therefore, you must keep the sabbath for it is holiness for you. Whoever desecrates it shall be put to death. If anyone does work on that day, that person must be cut off from the people. 15 Six days there are for doing work, but the seventh day is the sabbath of complete rest, holy to the Lord. Anyone who does work on the sabbath day shall be put to death. 16 So shall the Israelites observe the sabbath, keeping it throughout their generations as an everlasting covenant. 17 Between me and the Israelites it is to be an everlasting sign; for in six days the Lord made the heavens and the earth, but on the seventh day he rested at his ease.