2 Corinthians 8:22-26

And we have sent with them our brother, whom we have oftentimes proved diligent in many things, but now much more diligent, upon the great confidence which I have in you.

Whether any do enquire of Titus, he is my partner and fellowhelper concerning you: or our brethren be enquired of, they are the messengers of the churches, and the glory of Christ.

Wherefore shew ye to them, and before the churches, the proof of your love, and of our boasting on your behalf.