Numbers 15:32
As it was when the Israelis were in the wilderness, they found a man who was gathering wood on the Sabbath day.
Exodus 35:2-3
For six days work is to be done, but on the seventh day you are to have a holy day, a Sabbath of complete rest in dedication to the LORD. Anyone who does work on that day is to be executed.
Exodus 16:23
and he told them, "This is what the LORD said: "Tomorrow is a Sabbath observance, a holy Sabbath to the LORD. Bake what you want to bake and boil what you want to boil, and put aside whatever remains to be kept for yourselves until morning.'"
Exodus 16:27-28
Nevertheless, that seventh day some of the people went out to gather, but they did not find any.
Exodus 20:8-10
"Remember the Sabbath day, maintaining its holiness.
Exodus 31:14-15
You are to observe the Sabbath, because it's holy for you. Whoever profanes it is certainly to die; indeed, whoever does work on it is to be cut off from among his people.