Exodus 16:22-36

Now on the sixth day they gathered twice as much bread, two omers for each person; and all the leaders of the congregation came and told Moses. He said to them, “This is what the LORD has said: ‘Tomorrow is a solemn rest, a holy Sabbath to the LORD’; bake and boil what you will bake and boil [today], and all that remains left over put aside for yourselves to keep until morning.” They put it aside until morning, as Moses told them, and it did not become foul nor was it wormy. Then Moses said, “Eat that 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 [in the field].” Now on the seventh day some of the people went out to gather, but they found none. Then the LORD said to Moses, “How long do you [people] refuse to keep My commandments and My instructions (laws)? See, the LORD has given you the Sabbath; therefore He gives you the bread for two days on the sixth day. Let every man stay in his place; no man is to leave his place on the seventh day.” So the people rested on the seventh day. The house of Israel called the bread manna; it was like coriander seed, white, and it tasted like flat pastry (wafers) made with honey. Then Moses said, “This is the word which the LORD commands, ‘Let an omer of it be kept throughout your generations, that they may see the bread with which I fed you in the wilderness, when I brought you out of the land of Egypt.’ ” So Moses said to Aaron, “Take a pot and put an omer of manna in it, and place it before the LORD to be kept throughout your generations.” As the LORD commanded Moses, so Aaron [eventually] placed it in the presence of the Testimony, to be kept. [Heb 9:4] The Israelites ate manna forty years, until they reached an inhabited land; they ate the manna until they came to the border of the land of Canaan. (Now an omer is the tenth of an ephah.)