Exodus 16:31-35

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.