Exodus 16:16-18

16:16 “This is what the Lord has commanded: ‘Each person is to gather from it what he can eat, an omer per person according to the number of your people; each one will pick it up for whoever lives in his tent.’” 16:17 The Israelites did so, and they gathered – some more, some less. 16:18 When they measured with an omer, the one who gathered much had nothing left over, and the one who gathered little lacked nothing; each one had gathered what he could eat.