CCC 350
Profession of Faith›SECTION TWO I. THE CREEDS›CHAPTER ONE I BELIEVE IN GOD THE FATHER›Paragraph 5. HEAVEN AND EARTH
Angels are spiritual creatures who glorify God without ceasing and who serve his saving plans for other creatures: "The angels work together for the benefit of us all" (St. Thomas Aquinas, STh I, 114, 3, ad 3).