Exodus 16:32-34

Then Moses said, “This is what the LORD has commanded, ‘Let an omerful of it be kept throughout your generations, that they may see the bread that I fed you in the wilderness, when I brought you out of the land of Egypt.’ ” Moses said to Aaron, “Take a jar and put an omerful of manna in it, and place it before the LORD to be kept throughout your generations.” As the LORD commanded Moses, so Aaron placed it before the Testimony, to be kept.