By Msgr. Roger Landry, National Catholic Register - On Gaudete Sunday, we have another reason to rejoice this year: 2025 marks the 50th anniversary of St. Paul VI’s apostolic exhortation on Christian joy, Gaudete in Domino (“Rejoice in the Lord always”) from Philippians 4:4, the same expression from which the Third Sunday of Advent gets its nickname... While we sing of joy throughout the Advent season — “Rejoice! Rejoice! Emmanuel shall come to thee, O Israel!” — this Sunday’s Mass begins with a special imperative taken from St. Paul’s charge to the first Christians in Philippi: Gaudete semper in Domino. Iterum dico: Gaudete! (“Rejoice in the Lord always. ...