What is Gaudete Sunday? Four Advent candles with the rose one in front Gaudete Sunday is the name given to the third Sunday of Advent, the roughly four-week season leading up to Christmas. The name "Gaudete Sunday" is taken from the words of the introit, Gaudete in Domino semper, "rejoice in the Lord always." The Scriptural basis for this Sunday comes from Philippians 4:4,5. Similar to Laetare Sunday during Lent, Gaudete Sunday is a minor "break" from the more penitential nature of the Advent season, and signals a shift from a penitential style of waiting to a more joyful tone. In the past, when organs and flowers were forbidden during the Advent Season, they were permitted during Gaudete Sunday. Because of the more joyful tone of Gaudete Sunday, rose colored (pink) vestments may be used instead of the normal violet ones. Also, the rose colored Advent candle is lit.