Letter from Eusebius, patriarch of Rome, to Papa, Catholicos of the East

To my lord, the holy Mar Papa the patriarch, Eusebius your brother pays you respect to you. As the glory of God is not hidden, nor the triumphs of His saints, the Almighty (sic), victorious, forever-blessed emperor Constantine, with his mother, the believing queen, have rejoiced in your triumphs, and they are amazed at your wonders. And as in fine aromas, they have delighted in the true reports of your godly life. And may you also be blessed by your great priesthood, and by the holy see of Mar Thomas the apostle, which are connected to the apostle Addai , according to the tradition of the Church. They (i. e. the emperor and his mother) made liturgical instruments and sent [them] to you with their salutation in the imperial rescript (lit. the Sacra). Receive [them], my lord, with joy, and establish their memory in your Church. And may it be an eternal remembrance. And may they (i. e. the blessings) be overflowing from the sea of your blessings over them (i. e. the emperor and his mother) completely, and over us and this city. And may prayer without end be offered for our whole empire.