Exodus 16:27-30

27But on the seventh day, some of the people went out to pick up food. But they did not find any.

28Then the Lord said to Moses, ‘The people continue to refuse to obey my commands. They refuse to do what I tell them!

29Remember this: The Lord has given the Sabbath day to you. That is why, on the sixth day, he gives you enough food for two days. Then everyone must stay at home on the seventh day. Nobody must leave his home that day.’

30So the people rested on the seventh day.