What is meant by the Trinity?

Here in this very majestic declaration of the Oneness of the Godhead, care is taken to state it consistently with the truth afterwards revealed concerning the Three Persons of the Godhead—Father, Son and Spirit. These Three Persons, of one Substance, completely united in thought, will, purpose, counsel, are not three Gods, but One God, not a tritheism, but a Holy Trinity. We cannot understand the mystery of all this, but this truth lies at the very foundation of the Christian faith.

Thus we see that there could be no full revelation of God, but through the Son by the Spirit, and thereby of the Father. The full revelation of the one God is only thus - Father, Son, and Holy Ghost. This, this only, is what the one God is, one identity of will and being, so that they are essentially one and one only, yet distinct in willing and acting (and we can distinguish them in willing and acting: hence we commonly speak of persons), yet never willing or acting but in the common will and unity of nature.

Sabellianism, which holds that there is but one God under three different names.

Each of these errors destroys the Trinity in Unity, the first by denying the Unity of the Essence, the second by denying the Trinity of the Persons. The true and scriptural doctrine of the Trinity steers between these two erroneous extremes, and holds a Trinity of Persons in a Unity of Essence. Now, the Lord Jesus, as the eternal Son of the Father, is distinct from Him as His Son, and yet necessarily one with Him as partaking of the same Essence; and the Holy Spirit, as proceeding from the Father and the Son, is distinct also from those Persons of the Trinity, and yet, as eternally proceeding from both, partakes of their Essence likewise. Thus we have a Trinity of Persons, but a Unity of Essence—One God, but eternally subsisting as Father, Son and Holy Spirit. Eternal Sonship gives to the Son a Unity of Essence with the Father, and yet a distinctness of Person; thus, as the Son He is one with the Father (John 10:30), and yet as the Son He is distinct from the Father. So eternal procession from the Father and the Son gives to the Holy Spirit Unity of Essence with the Father and the Son, and yet a distinct Personality. Upon this firm basis the Trinity stands. But if you remove the eternal Sonship of Christ, you also must take away the eternal procession of the Holy Spirit; and by so doing you destroy the Unity of Essence and inter-communion of Nature of Israel’s Triune God. If the denial of the eternal Sonship of Jesus involve such consequences, well may we tremble at such an error as removes the very foundations of revealed truth. All other views of the Sonship of Christ lower His essential and eternal dignity and, however craftily disguised, tend to, and usually end in, Arianism. If His Sonship be not His eternal mode of subsistence, it must, in some way or other, be created Sonship, and what is this but Arian doctrine in its very root and essence? How the Son can be eternally begotten, and how the Holy Spirit can eternally proceed, is a mystery which we cannot understand, much less explain; but we receive it by faith, in the same way as we receive the “great mystery of godliness, God manifest in the flesh.” If once we begin to reason on these matters, we are lost at the very threshold of our inquiry. To believe, not to speculate; to receive the testimony that God has given of His Son; not to doubt, argue and cavil, is the only sure path, as well as the peculiar blessedness of a child of God.

So we must be careful in using the terms, first, second and third Persons in the Trinity, not to think there is any difference in importance. The Father is God; the Son is God; the Spirit is God—the Spirit equal in nature and substance to the Father and the Son. If the three Persons of the Godhead are each of them God, it does not follow that there are three Gods. That were impossible. There can be only one God, supreme and unique. Orthodox Christendom believes in three Persons in the Godhead, yet one God, indivisible and unique—the three Persons in the Godhead with one will, one purpose, each sharing to the full every thought and desire and purpose in the minds of the others. We may not, nay cannot, comprehend this. It is a mystery hidden in the Godhead, yet the Godhead is pleased to reveal Itself as Father, Son, and Holy Spirit.

This clearly shows that whilst Scripture affirms that there are three distinct Persons in the Godhead, yet there are not three Gods, but one; not a trinity of Gods, but a triune God.

Scripture is most plain, whatever unbelief may say, that there are three distinct persons in the Godhead, equal in power, majesty, and glory, each taking His own part in all that is done, whether in creation or redemption, yet ever acting in perfect unity and communion.

How, then, it may be asked, do we sustain our doctrine of eternal generation and at the same time obviate such a conclusion? We sustain it thus. We have already shown that there is a distinction between the Essence of God, which is one and self-existent, and the Personality of the Three Persons in the Godhead. Which is threefold, and thus intercommunicative, and so far dependent. We have to lament the inadequacy of language, or at least of our own language, to set such sublime mysteries forth; but the doctrine of a Trinity in Unity can only be so defended. The Unity of God implies self-existence; the Trinity in Unity implies relationship. Thus as regards the Unity of Essence Christ is self-existent; but as regards the Trinity He is begotten. He is therefore not a begotten God, though He is a begotten-Son. This explanation may be called mystical and obscure; but on such deep and incomprehensible subjects all thought fails and all language falters. Yet as we are sometimes called upon to state or defend our views of divine truth, it is desirable to have clear views of what we believe, and to express them as plainly as possible. We believe, then, that there are Three Persons in the Godhead, and that these are distinguished from each other by certain personal relationships, and that these personal relationships are not covenant titles, names, or offices, but are distinctive and eternal modes of existence. We are thus preserved from Sabellianism on the one hand, which holds that there is but one God with three different names; and Tritheism on the other, which makes three distinct Gods. But believing in a Trinity of Persons, in the Unity of the divine Essence, we say that the father is a Father as begetting; the Son is a Son as begotten; the Holy Spirit is a Spirit as proceeding. If, as imputed to us, we were to say that the Son is “a begotten God,” we should deny Him self-existence in His Essence, as One with the Father and the Holy Spirit; as if we should say that He is a Son by office or by His incarnation, we should deny, as Mr. Crowther does, His true, proper and actual Sonship. To sum up the whole in a few words, it is in His Person, not in His Essence, that He is the only-begotten Son of God. Dr. Gill has opened up this distinction with his usual clearness and ability in the following extract from his “Body of Divinity”:

When I say it is by necessity of nature, I do not mean that the divine nature, in which the divine Persons subsist, distinguishes Them; for that nature is one and common to Them all. The nature of the Son is the same with that of the Father; and the nature of the Spirit the same with that of the Father and the Son; and this nature, which They in common partake of, is undivided; it is not parted between Them, so that one has one part, and another a second, and another a third; nor that one has a greater and another a lesser part, which might distinguish Them, but the whole fullness of the Godhead is in each.

“To come to the point—it is the personal relations or distinctive relative properties which belong to each Person which distinguish Them from one another; as paternity in the First Person, filiation in the Second, and spiration in the Third; or, more plainly, it is begetting Psalm 2:7 which peculiarly belongs to the First, and is never ascribed to the Second and Third, which distinguishes Him from Them both, and gives Him; with great propriety, the Name of the Father; and it is being begotten, that is the personal relation, or relative property of the Second Person, hence called the only begotten of the Father (John 1:14), which distinguishes Him from the First and Third, and gives Him the name of the Son; and the relative property, or personal relation of the Third Person is, that He is breathed by the First and Second Persons; hence called the breath of the Almighty, the breath of the mouth of Jehovah the Father, and the breath of the mouth of Christ the Lord, and which is never said of the other Two Persons, and so distinguishes Him from Them; and very pertinently gives Him the name of the Spirit, or breath” (Job 33:4; Psalm 33:6; 2 Thessalonians 2:8). “Body of Divinity,” Book 1., ch. 28.

It will be seen from these extracts that a distinction is drawn between Essence and Person; but as some of my readers may feel a difficulty in gathering up the distinction between the two, I submit the following idea as an illustration, but, be it remembered, only as an illustration. Human nature is distinct, or at least distinguishable, from the individual men and women who in common possess that nature. Thus we may say that, human nature is common to alt men and women, and yet that men and women are distinct from one another as individuals. So, in a high and mysterious sense, the Essence of Deity, which is self-existent, may be distinguished from the Persons in the Deity, who sustain to each other a peculiar and eternal relationship. In Their Essence They are One, in Their Personality They are Three; in Their Essence They are self-existent, in Their Personality They subsist, the Father as Father to the Son, the Son as Son to the Father, the Holy Spirit to both as proceeding from the Father and the Son. Thus we establish a Trinity in Unity. “Hear, O Israel, the Lord our God is one Lord.” There is the unity of the divine Essence. “There are Three that bear record in heaven, the Father, the Word, and the Holy Spirit.” There we have the Trinity of Persons in the divine Essence, “for these Three are One” (1 John 5:7).

In human language when we speak of a person, we think of separate entity, separate existence, separate will, different characteristics, thoughts and plans peculiar to each person, not shared with any others. Carry that human thought into the subject before us, and the truth of the Trinity is entirely perverted and lost. Instead of the Trinity—Father, Son and Spirit, ONE God—we should have three Gods, an absolute impossibility, for there can only be one God, unique and incomprehensible.

The Holy Trinity is presented as Three in One. This, faith accepts, though it be beyond creature comprehension. There is much we believe even in our creature constitution which we cannot fully understand. While we are anxious to avoid negatives here, it may be said that in applying numerals, it is not three in the same way, or in the same sense as They are One — Three Persons in one Essence. This, though beyond us, is not out of bearing with sense, as are some of the delusions of the present day.

But if God is one in Essence, there are within that Essence, or Substance, three Persons, each standing in relation to the other as Father, Son and Spirit. Essence gives us an impersonal thought by which we can understand that He fills all space and permeates the universe with life, glory, and majesty. Eph. 4:6. "Heaven is My throne." Ps. 11:4. Acts 7:49. As such there is one mind, purpose, will and plan, hence, what is true of One, is true of all Three. This explodes for ever what speculative theology has pre-supposed namely, a conflict within the Godhead. To raise a moral question like that would be equal to saying, that God can be at variance with Himself.