Exodus 16
16 Ref This is what the Lord has said, Let every man take up as much as he has need of; at the rate of one omer for every person, let every man take as much as is needed for his family.
17 And the children of Israel did so, and some took more and some less.
18 Ref And when it was measured, he who had taken up much had nothing over, and he who had little had enough; every man had taken what he was able to make use of.