Numbers 15:32
When the {Israelites} were in the desert, they found a man who was gathering wood on the day of the Sabbath.
Exodus 35:2-3
[On] six days work can be done, and on the seventh there will be for you a holy [day], a {Sabbath of complete rest}, for Yahweh; anyone doing work on it will be put to death.
Exodus 16:23
And he said to them, "This is what Yahweh has said. Tomorrow [is] a rest period, a holy Sabbath for Yahweh. Bake what you [want to] bake, and boil what you [want to] boil. Put aside all the surplus for yourselves for safekeeping until the morning."
Exodus 16:27-28
And on the seventh day [some] of the people went out to gather, and they did not find [any].
Exodus 20:8-10
"Remember the day of the Sabbath, to consecrate it.
Exodus 31:14-15
And you must keep the Sabbath, because it is holy for you; defilers of it will surely be put to death, because anyone who does work on it--that person will be cut off from among his people.