Exodus 16
22 Ref And on the sixth day they took up twice as much of the bread, two omers for every person: and all the rulers of the people gave Moses word of it.
23 Ref 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.