Deuteronomy
You are to eat there before Adonoy, your God, and you will be happy with the sum of your handiwork, you and your households, as Adonoy, your God, has blessed you.
Exodus
But the seventh day is Shabbos to Adonoy, your God. You must not do any manner of work—you, your son, your daughter, your slave, your maid, your animal, and the foreigner within your gates.