19 For the rest, We trust that these days, on which We renew the memory of Jesus Christ, risen from the dead, may be to you, venerable brothers, and to all the fold of God, a source of blessing and salvation and fullness of holy joy, praying our most gracious God that by the blood of the Lamb without spot, which blotted out the handwriting that was against Us, the sins We have committed may be washed away, and the judgment We are suffering for them may mercifully be mitigated. "The grace of our Lord Jesus Christ, and the Charity of God, and the communication of the Holy Spirit be with you all,"(12) venerable brothers; to each and all of whom, as well as to Our beloved children, the clergy and faithful of your churches, as a pledge of Our special good-will and as an earnest of the protection of heaven, We lovingly impart the apostolic benediction. Given at St. Peter's, in Rome, on the solemnity of Easter, the twenty-first day of April, 1878, in the first year of our pontificate.
Source: Inscrutabili Dei Consilio (Vatican.va)