Exodus 16:23-25

23he said to them, "This is what the Lord has commanded: 'Tomorrow is a day of solemn rest, a holy Sabbath to the Lord; bake what you will bake and boil what you will boil, and all that is left over lay aside to be kept till the morning.'"

24So they laid it aside till the morning, as Moses commanded them, and it did not stink, and there were no worms in it.

25Moses said, "Eat it today, for today is a Sabbath to the Lord; today you will not find it in the field.