The doctrine of the Trinity, as it stands in the creeds of the churches, is this:—

There is in the nature of God three persons,—the Father, the Son, and the Holy Ghost,—and these three are one being. They are the same in substance, equal in power and glory. Each of these three persons is very God, infinite in all attributes; and yet there are not three Gods, but one God.

According to the general doctrine of Orthodoxy, the unity of God is in being, essence, and substance; that is, God is one being, God is one essence, God is one substance. The threefold division stops short of the being of God: it does not penetrate to his essential nature: it does not divide his substance.

What, then, is the Trinity? It is a Trinity of persons.

But what is meant by “person,” as used in this doctrine? According to the common and familiar use of the word at the present time, three persons are three beings. Personality expresses the most individual existence imaginable. If, therefore, the word “person” is to be taken according to the common use of the phrase, the doctrine of the Trinity would be evidently a contradiction in terms. It would be equivalent to saying, God is one being, but God is three beings; which again would be equivalent to saying that one is three.

Now, Trinitarians generally are too acute and clear-sighted to fall into such a palpable contradiction as this. It is a common accusation against them, that they believe one to be three, and three one; but this charge is, in most cases, unjust. This would be only true in case they affirmed that God is three in the same way in which he is one; but they do not usually say this. They declare that he is one being,—not three beings. They declare that the threefold distinction relates to personality, not to being, and that they use the word “person,” not in the common sense, but in a peculiar sense, to express, as well as they can, a distinction, which, from the poverty of language, no word can be found to express exactly. Thus St. Augustine confessed, long ago, “We say that there are three persons, not in order to say anything, but in order not to be wholly silent.” Non ut aliquid diceretur, sed ut ne taceretur. And so Archbishop Whately, in the notes to his Logic, regrets that the word “person” should ever have been used by our divines; and says, “If hypostasis, or any other completely foreign word, had been used instead, no idea at all would have been conveyed, except that of the explanation given; and thus the danger, at least, of being misled by a word, would have been avoided.”

(1.) The Unintelligible Statement.

The Trinitarian thus avoids asking us to believe a contradiction; but, in avoiding this, he runs upon another rock—that, namely, of not asking us to believe anything at all; for if “person” here does not mean what it commonly means, and if it be impossible, from the poverty of language, to define precisely the idea which is intended by it, we are then asked to believe a proposition which Trinitarians themselves are unable to express. But a proposition which is not expressed is no proposition. A proposition, any important term of which is unintelligible, is wholly unintelligible.

To make this matter clear, let us put it into a conversational form. We will suppose that two persons meet together,—one a Unitarian, the other a Trinitarian.

Trinitarian. You do not believe the Trinity? Then you cannot be saved. No one can be saved who denies the Trinity. It is a vital and fundamental doctrine.