Gather for six days. But on the seventh day, it is the Sabbath of the Lord, for which reason it will not be found.
Other versions
King James Version
Six days ye shall gather it; but on the seventh day, which is the sabbath, in it there shall be none.English Standard Version
Six days you shall gather it, but on the seventh day, which is a Sabbath, there will be none."New International Version
Six days you are to gather it, but on the seventh day, the Sabbath, there will not be any."