Exodus 16:20-24

Notwithstanding they hearkened not unto Moses; but some of them left of it until the morning, and it bred worms, and became foul: and Moses was wroth with them. And they gathered it morning by morning, every man according to his eating: and when the sun waxed hot, it melted. And it came to pass, that on the sixth day they gathered twice as much bread, two omers for each one: and all the rulers of the congregation came and told Moses. And he said unto them, This is that which Jehovah hath spoken, To-morrow is a solemn rest, a holy sabbath unto Jehovah: bake that which ye will bake, and boil that which ye will boil; and all that remaineth over lay up for you to be kept until the morning. And they laid it up till the morning, as Moses bade: and it did not become foul, neither was there any worm therein.