Catechism of the Catholic Church §530 — excerpt
The flight into Egypt and the massacre of the innocents make manifest the opposition of darkness to the light: "He came to his own home, and his own people received him not."
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.