Catechism of the Catholic Church §1048 — excerpt
"We know neither the moment of the consummation of the earth and of man, nor the way in which the universe will be transformed. the form of this world, distorted by sin, is passing away, and we are taught that God is preparing a new…
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.
Also cites: GS 39 # 1