Exodus 16:33-36

33Moses said to Aaron, “1Take a jar and put an omerful of manna in it, and place it before the Lord to be kept throughout your generations.”

34As the Lord commanded Moses, so Aaron placed it before 2the Testimony, to be kept.

353The sons of Israel ate the manna forty years, until they came to an inhabited land; they ate the manna until they came to the border of the land of Canaan.

36(Now 4an omer is a tenth of an 5ephah.)