Cross reference
Exodus 16:36
36 Now an omer is the tenth part of an ephah.
Exodus 16:16
16 This is the thing which Jehovah hath commanded, Gather ye of it every man according to his eating; an omer a head, according to the number of your persons, shall ye take it, every man for them that are in his tent.
Exodus 16:32-33
32 And Moses said, This is the thing which Jehovah hath commanded, Let an omerful of it be kept throughout your generations, that they may see the bread wherewith I fed you in the wilderness, when I brought you forth from the land of Egypt.
33 And Moses said unto Aaron, Take a pot, and put an omerful of manna therein, and lay it up before Jehovah, to be kept throughout your generations.