Exodus 31:14-15

New International Version

¹⁴ “‘Observe the Sabbath, because it is holy to you. Anyone who desecrates it is to be put to death;^(A) those who do any work on that day must be cut off from their people. ¹⁵ For six days work^(B) is to be done, but the seventh day is a day of sabbath rest,^(C) holy to the Lord. Whoever does any work on the Sabbath day is to be put to death.