23 We cannot conclude without turning in a very special manner to you, Venerable Brethren, who are the faithful interpreters of Our thoughts. We wish to tell you that We feel all the more closely united to you, in proportion to the hardships you are meeting with in your apostolic ministry. We are certain that, being so close to the heart of the Vicar of Christ, you will draw comfort and strength from this knowledge to persevere in the holy and arduous enterprise of leading to salvation the flock entrusted to you. And that the grace of God may ever assist you and His Mercy support you, with all paternal affection, We impart to you and to Our beloved sons so sorely tried, the Apostolic Benediction.
Source: Acerba Animi (Vatican.va)