Exodus 16:30-36

30So the people rested on the seventh day. 31And the house of Israel called the name thereof Manna: and it was like coriander seed, white; and the taste of it was like wafers made with honey. 32And Moses said, This is the thing which the LORD hath commanded, Let an omerful of it be kept for your generations; that they may see the bread wherewith I fed you in the wilderness, when I brought you forth from the land of Egypt. 33And Moses said unto Aaron, Take a pot, and put an omerful of manna therein, and lay it up before the LORD, to be kept for your generations. 34As the LORD commanded Moses, so Aaron laid it up before the Testimony, to be kept. 35And the children of Israel did eat the manna forty years, until they came to a land inhabited; they did eat the manna, until they came unto the borders of the land of Canaan. 36Now an omer is the tenth part of an ephah.