This is what YHWH has commanded: ‘Gather of it, each one of you, as much as he can eat. You shall each take an omer, according to the number of the persons that each of you has in his tent.’
Exodus 16:16

Each person that gathered was gathering for himself, but also for his family. If manna was intended as an allegory of #yeshua, the ultimate Bread of Life, this adds some depth to Paul's statements about families being sanctified by the faith of a single member. We are each responsible for our own submission to Messiah, but our submission overflows and also feeds the members of our household.