Roman Catechism 24.29

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

Section 29. They Do Not Forbid Representations Of The Divine Persons And Angels — To represent the Persons of the Holy Trinity by certain forms under which they appeared in the Old and New Testaments no one should deem contrary to religion or the law of God. For who can be so ignorant as to believe that such forms are representations of the Deity? -- forms, as the pastor should teach, which only express some attribute or action ascribed to God. Thus when from the description of Daniel God is painted as the Ancient of days, seated on a throne, with the books opened before hint, the eternity of God is represented and also the infinite wisdom, by which He sees and judges all the thoughts and actions of men.'