Exodus 35:1-3

Sabbath Regulations 1Moses assembled the whole Israelite community and said to them, “These are the things the LORD has commanded you to do: 2For six days, work is to be done, but the seventh day shall be your holy day, a day of sabbath rest to the LORD . Whoever does any work on it is to be put to death.

3Do not light a fire in any of your dwellings on the Sabbath day.”