1 Corinthians 16:1-2

NOW CONCERNING the money contributed for [the relief of] the saints (God's people): you are to do the same as I directed the churches of Galatia to do. On the first [day] of each week, let each one of you [personally] put aside something and save it up as he has prospered [in proportion to what he is given], so that no collections will need to be taken after I come.