Exodus 16:24-28

So they put it aside until morning, as Moses had ordered, and it did not stink nor was there a maggot in it.

Then Moses said, “Eat it today, for today is a Sabbath to the Lord; today you will not find it in the field.

Six days you shall gather it, but on the seventh day, the Sabbath, there will be none.”

Yet it came about on the seventh day that some of the people went out to gather, but they found none.

Then the Lord said to Moses, “How long do you refuse to keep My commandments and My instructions?