Numbers 15:32
And while the sons of Israel were in the wilderness, they found a man gathering sticks on the sabbath day.
Exodus 35:2-3
Six days shall work be done, but on the seventh day there shall be to you a holy day, a sabbath of rest to Jehovah. Whoever does work in it shall be put to death.
Exodus 16:23
And he said to them, This is that which Jehovah has said, Tomorrow is the rest of the holy sabbath to Jehovah. Bake what you will bake today, and boil what you will boil. And that which remains over, lay up for you to be kept until the morning.
Exodus 16:27-28
And it happened some of the people went out on the seventh day in order to gather. And they did not find any.
Exodus 20:8-10
Remember the Sabbath day, to keep it holy.
Exodus 31:14-15
You shall keep the Sabbath therefore, for it is holy to you. Everyone that defiles it shall surely be put to death. For whoever does any work in it, that soul shall be cut off from among his people.