Exodus 16:36

¹⁶This is the thing which the LORD has commanded: ‘Gather of it everyone according to his eating; an omer^[+] a head, according to the number of your persons, you shall take it, every man for those who are in his tent.’”

³²Moses 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.’” ³³Moses 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.”