The Bible:
The Catechism of the Catholic Church (CCC)
Official Church Documents:
- Dominus Iesus, Pope Saint John Paul II, Congregation for the Doctrine of the Faith on the Unicity and Salvific Universality of Jesus Christ and the Church, Paragraph 1, 5 and 11.
Other Sources:
- Celebration of First Vespers of the First Sunday of Advent for Unborn Life, Homily of His Holiness Benedict XVI
- Advent of Hope with Array of Hope
- Angelus, Pope John Paul II, First Sunday of Advent, December 2, 2001
- Best Advent Ever, Dynamic Catholic website