Catechism of the Catholic Church §135 — excerpt
"The Sacred Scriptures contain the Word of God and, because they are inspired, they are truly the Word of God" (DV 24).
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.