1 Cyprian to the presbyter Rogatianus, and to the other confessors, his brethren, greeting. I had both heretofore, dearly beloved and bravest brethren, sent you a letter, in which I congratulated your faith and virtue with exulting words, and now my voice has no other object, first of all, than with joyous mind, repeatedly and always to announce the glory of your name. For what can I wish greater or better in my prayers than to see the flock of Christ enlightened by the honour of your confession? For although all the brethren ought to rejoice in this, yet, in the common gladness, the share of the bishop is the greatest. For the glory of the Church is the glory of the bishop. In proportion as we grieve over those whom a hostile persecution has cast down, in the same proportion we rejoice over you whom the devil has not been able to over-Conic.
Source: The Epistles of Cyprian (New Advent)