1 Corinthians 16:1-4

Now concerning the money collected for [the relief of] the saints [in Jerusalem], you are to do the same as I directed the churches of Galatia to do. On the first day of every week each one of you is to put something aside, in proportion to his prosperity, and save it so that no collections [will need to] be made when I come. When I arrive, I will send whomever you approve with letters [of authorization] to take your gift [of charity and love] to Jerusalem; and if it is fitting for me to go too, they will accompany me.