Exodus 16:24-27

And they laid it up till the morning, as Moses bade: and it did not become foul, neither was there any worm therein. And Moses said, Eat that to-day; for to-day is a sabbath unto Jehovah: to-day ye shall not find it in the field. Six days ye shall gather it; but on the seventh day is the sabbath, in it there shall be none. And it came to pass on the seventh day, that there went out some of the people to gather, and they found none.