Exodus 16:32 in the King James Version
And Moses said, This is the thing which the LORD commandeth, Fill an omer of it to be kept for your generations; that they may see the bread wherewith I have fed you in the wilderness, when I brought you forth from the land of Egypt.
Context
31 The house of Israel called its name “Manna”, and it was like coriander seed, white; and its taste was like wafers with honey.
32 Moses said, “This is the thing which the LORD has commanded, ‘Let an omer-full 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.’”
33 Moses said to Aaron, “Take a pot, and put an omer-full of manna in it, and lay it up before the LORD, to be kept throughout your generations.”