60 In this sad and anxious state of affairs our fatherly heart goes out especially to those who are so harshly and bitterly oppressed by it, and first of all to you, venerable brothers, the bishops of the Ruthenian people. Great as are the trials which afflict you, you are more burdened with anxiety for the safety of your flocks than for the injuries and sufferings inflicted upon yourselves, in accordance with the words: "the good shepherd lays down his life for his sheep." The present is dark and the future uncertain and full of cares, but do not lose heart. Rather so display yourselves, presenting "such a spectacle . . . to the whole creation, men and angels alike," that all the faithful of Christ may see in your endurance and courage a shining example. Courageously, and steadfastly enduring this attack of your enemies, and afire with a divine love for the Church, you become "the good odor of Christ unto God, in them that are saved and in them that perish." In bonds as you are, and separated from your sons, it is not in your power to give them instruction in our holy religion, but your very bonds more fully and profoundly proclaim and preach Christ.
Source: Orientales Omnes Ecclesias (Vatican.va)