NT.filter - web Onesimus:

web@Colossians:4:9 @ together with Onesimus, the faithful and beloved brother, who is one of you. They will make known to you everything that is going on here.

web@Philemon:1:10 @I beg you for my child, whom I have become the father of in my chains, Onesimus, {Onesimus means "useful."}