1 Corinthians 16:2

Upon the first day of the week let each one of you lay by him in store, as he may prosper, that no collections be made when I come. [The word "thesaurizoon," translated "in store," means, literally, "put into the treasury;" and the phrase "par' heauto," translated "by him," may be taken as the neuter reflexive pronoun, and may be rendered with equal correctness "by itself." Macknight thus renders these two words, and this rendering is to be preferred. If each man had laid by in his own house, all these scattered collections would have had to be gathered after Paul's arrival, which was the very thing that he forbade. Again, had the collection been of such a private nature, it would have been gathered normally at the end instead of at the beginning of the week. But the first day of the week was evidently set apart for public worship (John 20:19-26; Acts 20:7; Revelation 1:10), and this offering was part of the service. It was put in the public treasury of the church, but kept by itself as a separate fund. The translation of the Revised Version is unfortunate, as it obscures the idea of the weekly service of the church. According to Paul's method of collecting, each rendered a weekly account of his stewardship, and gave more and felt it less than if he had attempted to donate it all at one time. Paul had promised to take such offerings (Galatians 2:10). As a Christian he tries to relieve that distress which, as a persecutor, he had aided to inflict (Acts 26:6-10). He wished each one, rich or poor, to contribute to the offering, and he wanted the whole matter disposed of and out of the way when he came, that he might turn attention to more important matters.]