Charles Spurgeon Commentary Exodus 16:34-36

"As Jehovah commanded Moses, so Aaron laid it up before the Testimony, to be kept. And 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. Now an omer is the tenth part of an ephah." — Exodus 16:34-36 (ASV)

Now I want you to read in the Book of Numbers. Further on in the history of the children of Israel, when the people had been long in the wilderness, the same kind of thing happened again.