Exodus 16:16-18

16This is the thing which Jehovah has commanded: Gather of it every man according to what he can eat, an omer a poll, [according to] the number of your persons: ye shall take every man for those that are in his tent.

17And the children of Israel did so, and gathered, some much, some little.

18And they measured with the omer: then he that gathered much had nothing over, and he that gathered little wanted nothing: they had gathered every man according to the measure of his eating.