Numbers 15:32
Now while the children of Israel were in the waste land, they saw a man who was getting sticks on the Sabbath day.
Exodus 35:2-3
Six days let work be done, but the seventh day is to be a holy day to you, a Sabbath of rest to the Lord; whoever does any work on that day is to be put to death.
Exodus 16:23
And he said, This is what the Lord has said, Tomorrow is a day of rest, a holy Sabbath to the Lord: what has to be cooked may be cooked; and what is over, put on one side to be kept till the morning.
Exodus 16:27-28
But still on the seventh day some of the people went out to get it, and there was not any.
Exodus 20:8-10
Keep in memory the Sabbath and let it be a holy day.
Exodus 31:14-15
So you are to keep the Sabbath as a holy day; and anyone not honouring it will certainly be put to death: whoever does any work on that day will be cut off from his people.