Exodus 35:2

35:2 'Six days shall work be done, but on the seventh day there shall be a holy day for you, a Sabbath of solemn rest to Yahweh: whoever does any work in it shall be put to death.
-World English Bible

Other Translation

35:2 Six days shall work be done, but on the seventh day there shall be to you an holy day, a sabbath of rest to the LORD: whosoever doeth work therein shall be put to death.
-King James Version