Philemon 1:9 WEB

⁷  For we have much joy and comfort in your love, because the hearts of the saints have been refreshed through you, brother.

⁸  Therefore, though I have all boldness in Christ to command you that which is appropriate,

⁹  yet for love's sake I rather beg, being such a one as Paul, the aged, but also a prisoner of Jesus Christ.

¹⁰  I beg you for my child, whom I have become the father of in my chains, Onesimus,{Onesimus means 'useful.'}

¹¹  who once was useless to you, but now is useful to you and to me.