Exodus 16:16
This, is the thing which Yahweh hath commanded, Gather ye thereof, each man what he needeth for eating, - an omer a head, by the number of your souls, each man - for them who are in his tent, shall ye take.
Exodus 16:36
Now, an omer, is, the tenth of the ephah.
Exodus 16:18
and when they measured it with the omer, he who had gathered more had nothing over, and he who had gathered less had no lack: each man what he needed for eating, did they gather.
Exodus 16:32-33
And Moses said - This, is the thing which Yahweh hath commanded, Fill an omer therefrom as a thing to be preserved to your generations, - that they may see the bread wherewith I fed you in the desert, when I brought you forth out of the land of Egypt.