Catechism of the Catholic Church §670 — excerpt
Since the Ascension God's plan has entered into its fulfilment. We are already at "the last hour". "Already the final age of the world is with us, and the renewal of the world is irrevocably under way; it is even now anticipated in a certain…
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: LG 48 # 3