Numbers 15:32
And while the children 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 on it shall be put to death.
Exodus 16:23
And he said to them, This is what Jehovah has said: To-morrow is the rest, the holy sabbath, of Jehovah: bake what ye will bake, and cook what ye will cook; and lay up for yourselves all that remains over, to be kept for the morning.
Exodus 16:27-28
And it came to pass on the seventh day that there went out some from the people to gather it, and they found none.
Exodus 20:8-10
Remember the sabbath day to hallow it.
Exodus 31:14-15
Keep the sabbath, therefore; for it is holy unto you; every one that profaneth it shall certainly be put to death: yea, whoever doeth work on it, that soul shall be cut off from among his peoples.