Catechism of the Catholic Church §591 — excerpt
Jesus asked the religious authorities of Jerusalem to believe in him because of the Father's works which he accomplished. But such an act of faith must go through a mysterious death to self, for a new "birth from above" under the influence of divine grace.
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.
Whole chapters cited: Luke 23