Catechism of the Catholic Church §663 — excerpt
Henceforth Christ is seated at the right hand of the Father: "By 'the Father's right hand' we understand the glory and honour of divinity, where he who exists as Son of God before all ages, indeed as God, of one being with the Father, is…
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.
Also cites: St. John Damascene, Defide orth. 4, 2: PG 94, 1104C