Exodus 16:16-18

16This is what the Lord has commanded: ‘Let every man gather as much of it as he needs. Take an omer for each person, according to the number of people each of you has in his tent.’ ”

17The Israelites did so, and some gathered much [of it] and some [only a] little.

18When they measured it with an omer, he who had gathered a large amount had no excess, and he who had gathered little had no lack; every man gathered according to his need (family size).