Catechism of the Catholic Church §2347 — excerpt
The virtue of chastity blossoms in friendship. It shows the disciple how to follow and imitate him who has chosen us as his friends,133 who has given himself totally to us and allows us to participate in his divine estate.
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.