Philippians 4:4-5 Gaudete in Domino semper: iterum dico, gaudete. Dominus enim prope est. Rejoice in the Lord always; again I say, rejoice. Indeed, the Lord is near.
Zephaniah 3:14 Shout for joy, O daughter Zion! Sing joyfully, O Israel! Be glad and exult with all your heart.
Luke 3:18 Exhorting them in many other ways, he (John the Baptist) preached good news to the people.
The Third Sunday of Advent and the Fourth Sunday of Lent are traditionally known in the sacred liturgy of the Roman Rite by the Latin first words of their Gregorian Chant Introits (Entrance Chants), which remain even in the liturgical reform as the official opening music for these days. In Advent it is Gaudete, whereas in Lent it is Laetare; both are exhortations to the people of God to rejoice in the Lord. In fact, during the many centuries when these ancient and venerable chants were used exclusively, the congregation would immediately know the occasion not only by the words, but also by the proper music. It told them that the holy season of Christmas preparation or Easter preparation was half over. There is still the custom in many parishes to switch from violet colored vestments to rose colored ones, if these are available, but just for these two Sundays. Clearly, the theme in Advent is rejoicing in the grace won for us by our Divine Lord and Savior, Jesus Christ. Who wouldn’t want to be reborn in Christ?