Catechism of the Catholic Church §2197 — excerpt
The fourth commandment opens the second table of the Decalogue. It shows us the order of charity. God has willed that, after him, we should honor our parents to whom we owe life and who have handed on to us the knowledge of God.
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.