The Catechism of the Catholic Church (CCC):
Official Church Documents:
- Ad Gentes, Papal Decree on the Mission Activity of the Church, Paragraph 9.
- Christifideles Laici, Apostolic Exhortation on Vocation and the Mission of Lay Faithful in the Chruch and in the World, Paragraphs 13-14.
- Lumen Gentium, Dogmatic Constitution on The Church, Vatican Council II, Paragraph 6.
- Pope Francis Morning Meditation in the Chapel of the Domus Sanctae Marthae: The Cornerstone, Friday, 28 October 2016