Numbers 15:32
And while the children of Israel were in the wilderness, they found a man gathering sticks upon the Sabbath day.
Exodus 35:2-3
Six days ye shall work, but the seventh day shall be unto you the holy Sabbath of the LORD's rest: so that whosoever doth any work therein, shall die.
Exodus 16:23
And he said unto them, "This is that which the LORD hath said, 'Tomorrow is the Sabbath of the holy rest of the LORD: bake that which ye will bake and fetch that ye will fetch, and that which remaineth lay up for you, and keep it till the morning."
Exodus 16:27-28
Notwithstanding, there went out of the people in the seventh day for to gather: but they found none.
Exodus 20:8-10
"Remember the Sabbath day that thou sanctify it.
Exodus 31:14-15
Keep my Sabbath therefore, that it be a holy thing unto you. He that defileth it, shall be slain therefore. For whosoever worketh therein, the same soul shall be rooted out from among his people.