Letter 243: Theodore Studite, Letter 243; Greek heading: Ἰσιδώρῳ λαϊκῷ.

Once again I have caused you trouble, man of God and true friend, with your errands [the messages you carry on my behalf]; but the Lord will repay you with a heavenly reward, which you seek from the Lord, and for the sake of which you pursue a life of virginity and reverence, devoting yourself to the churches, occupying yourself in works of piety as a lover of monks, as a man without guile, dwelling in your house after the manner of the patriarch Jacob. I exhort you further to hold fast to orthodoxy and to abstain from heretical communion [communion with the iconoclasts, whom Theodore regards as heretics], through which abstention we shall have boldness before the judgment seat of Christ. Remember us, offering up holy prayers, my most honored and most longed-for friend.