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 8:22-23

8:22 And we are sending with them our brother whom we have tested many times and found eager in many matters, but who now is much more eager than ever because of the great confidence he has in you. 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.

2 Corinthians 12:18

12:18 I urged Titus to visit you and I sent our brother along with him. Titus did not take advantage of you, did he? Did we not conduct ourselves in the same spirit? Did we not behave in the same way?