9 Beware, Venerable Brethren, of that growing abuse, in speech as in writing, of the name of God as though it were a meaningless label, to be affixed to any creation, more or less arbitrary, of human speculation. Use your influence on the Faithful, that they refuse to yield to this aberration. Our God is the Personal God, supernatural, omnipotent, infinitely perfect, one in the Trinity of Persons, tri-personal in the unity of divine essence, the Creator of all existence. Lord, King and ultimate Consummator of the history of the world, who will not, and cannot, tolerate a rival God by His side.
Source: Mit Brennender Sorge (Vatican.va)