Roman Catechism 3.41

Chapter 3 — Part I: The Creed — Article I: I Believe in God, the Father Almighty, Creator of Heaven and Earth

Section 41. As it was His own goodness that influenced Him when He did all things whatsoever He would, so in the work of creation He followed no external form or model; but contemplating, and as it were imitating, the universal model contained in the divine intelligence, the supreme Architect, with infinite wisdom and power-attributes peculiar to the Divinity -- created all things in the be ginning. He spoke and they were made: he commanded and they were created.