168. It is a contradiction for them to say three Persons and one God, for the term 'person' involves something distinct and different from another. The very distinction and difference is even laid down in the doctrine of the Church, and because the distinction differs among the Persons, it follows that each one is a separate God from another; and if separated, it follows that there are three Gods.
(2) To make one God from the substances or the essences from them, this falls into the conception of no one, when the essence or substance is distinguished by attributes of one not proper to another, for in this way, one is worshipped for this attribute, and another for that.