1 Corinthians 16:2
On the first day of every week, each of you should set aside a portion of his income, saving it up, so that when I come no collections will be needed.
What it says
On the first day of every week each should set aside a portion of income and save it, so that no collections need to be made when Paul comes.
What it is doing
It gives the collection a regular and prepared pattern.
In context
1Now about the collection for the saints, you are to do as I directed the churches of Galatia: 2On the first day of every week, each of you should set aside a portion of his income, saving it up, so that when I come no collections will be needed. 3Then, on my arrival, I will send letters with those you recommend to carry your gift to Jerusalem. 4And if it is advisable for me to go also, they can travel with me.