2 Corinthians 2:13

2:13 I had no relief in my spirit, because I did not find my brother Titus there. So I said good-bye to them and set out for Macedonia.

2 Corinthians 7:13-14

7:13 Therefore we have been encouraged. And in addition to our own encouragement, we rejoiced even more at the joy of Titus, because all of you have refreshed his spirit. 7:14 For if I have boasted to him about anything concerning you, I have not been embarrassed by you, but just as everything we said to you was true, so our boasting to Titus about you has proved true as well.

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.