2 Corinthians 8:19

8:19 In addition, this brother has also been chosen by the churches as our traveling companion as we administer this generous gift to the glory of the Lord himself and to show our readiness to help.

2 Corinthians 8:23

8:23 If there is any question about Titus, he is my partner and fellow worker among you; if there is any question about our brothers, they are messengers of the churches, a glory to Christ.