I.

Firmilianus to Cyprian, his brother in the Lord, greeting. We have received by Rogatian, our beloved deacon, the letter sent by you which you wrote to us, well-beloved brother; and we gave the greatest thanks to the Lord, because it has happened that we who are separated from one another in body are thus united in spirit, as if we were not only occupying one country, but inhabiting together one and the self-same house. Which also it is becoming for us to say, because, indeed, the spiritual house of God is one. "For it shall come to pass in the last days," saith the prophet, "that the mountain of the Lord shall be manifest, and the house of God above the tops of the mountains." Those that come together into this house are united with gladness, according to what is asked from the Lord in the psalm, to dwell in the house of the Lord all the days of one's life. Whence in another place also it is made manifest, that among the saints there is great and desirous love for assembling together. "Behold," he says, "how good and how pleasant a thing it is for brethren to dwell together in unity! "