Roman Catechism 24.15

Chapter 24 — Part III: The Decalogue — The First Commandment

Section 15. It Is Lawful To Honour And Invoke The Saints — From all this we may conclude that to honour the Saints who nave slept in the Lord, to invoke them, and to venerate their sacred relics and ashes, far from diminishing, tends considerably to increase the glory of God, in proportion as man's hope is thus animated and fortified, and he himself encouraged to imitate the Saints.