(Stupid Laws) Sabbath: Exodus 31:14-15

You shall keep the sabbath, because it is holy for you; every one who profanes it shall be put to death; whoever does any work on it, that soul shall be cut off from among his people. Six days shall work be done, but the seventh day is a sabbath of solemn rest, holy to the LORD; whoever does any work on the sabbath day shall be put to death. - Exodus 31:14-15