1 Corinthians 16:3

Paul planned to send a representative from each of the contributing churches, or possibly groups of churches, to Jerusalem with the gift. The letters he spoke of may have been letters of introduction from himself since it appears that at this time he did not plan to make this trip himself. Such a procedure would guarantee that the money would arrive safely and that people would view the whole project as honest (cf. 2 Corinthians 8:21).