Numbers 15:32
And while the children of Israel were in the wilderness, they found a man that gathered sticks upon the sabbath day.
Exodus 35:2-3
Six days shall work be done, but on the seventh day there shall be to you an holy day, a sabbath of rest to the LORD: whosoever doeth work therein shall be put to death.
Exodus 16:23
And he said unto them, This is that which the LORD hath said, To morrow is the rest of the holy sabbath unto the LORD: bake that which ye will bake to day, and seethe that ye will seethe; and that which remaineth over lay up for you to be kept until the morning.
Exodus 16:27-28
And it came to pass, that there went out some of the people on the seventh day for to gather, and they found none.
Exodus 20:8-10
Remember the sabbath day, to keep it holy.
Exodus 31:14-15
Ye shall keep the sabbath therefore; for it is holy unto you: every one that defileth it shall surely be put to death: for whosoever doeth any work therein, that soul shall be cut off from among his people.