John Calvin - Institutes of the Christian Religion

XXV. But they deceive themselves in dreaming of three separate individuals, each of them possessing a part of the Divine essence. We teach, according to the Scriptures, that there is essentially but one God; and, therefore, that the essence of both the Son and the Spirit is unbegotten. But since the Father is first in order, and hath of himself begotten his wisdom, therefore, as has before been observed, he is justly esteemed the original and fountain of the whole Divinity. Thus God, indefinitely, is unbegotten; and the Father also is unbegotten with regard to his Person. They even foolishly suppose, that our opinion implies a quaternity; whereas they are guilty of falsehood and calumny, in ascribing to us a figment of their own; as though we pretended that the three Persons are as so many streams proceeding from one essence, when it is evident, from our writings, that we separate not the Persons from the essence, but, though they subsist in it, make a distinction between them. If the persons were separated from the essence, there would perhaps be some probability in their argument; but then there would be a trinity of Gods, not a trinity of persons contained in one God. This solves their frivolous question, whether the essence concurs to the formation of the Trinity; as though we imagined three Gods to descend from it. Their objection, that then the Trinity would be without God, is equally impertinent. Because, though it concurs not to the distinction as a part or member, yet the Persons are not independent of it, nor separate from it; for the Father, unless he were God, could not be the Father; and the Son is the Son only as he is God. Therefore we say, that the Deity is absolutely self-existent; whence we confess, also, that the Son, as God, independently of the consideration of Person, is self-existent; but as the Son, we say, that he is of the Father. Thus his essence is unoriginated; but the origin of his Person is God himself. And, indeed, the orthodox writers, who have written on the Trinity, have referred this name only to the Persons; since to comprehend the essence in that distinction, were not only an absurd error, but a most gross impiety. For it is evident that those who maintain that the Trinity consists in a union of the Essence, the Son, and the Spirit, annihilate the essence of the Son and of the Spirit; otherwise the parts would be destroyed by being confounded together; which is a fault in every distinction. Finally, if the words Father and God were synonymous—if the Father were the author of the Deity—nothing would be left in the Son but a mere shadow; nor would the Trinity be any other than a conjunction of the one God with two created things.

XXVI. Their objection, that Christ, if he be properly God, is not rightly called the Son of God, has already been answered; for when a comparison is made between one Person and another, the word God is not used indefinitely, but is restricted to the Father, as being the fountain of the Deity, not with regard to the essence, as fanatics falsely pretend, but in respect of order. This is the sense in which we ought to understand that declaration of Christ to his Father: “This is life eternal, that they might know thee, the only true God, and Jesus Christ, whom thou hast sent.”285 For, speaking in the capacity of Mediator, he holds an intermediate station between God and men; yet without any diminution of his majesty. For, although he abased himself, yet he lost not his glory with the Father, which was hidden from the world. Thus the Apostle to the Hebrews,286 though he acknowledges that Christ was made for a short time inferior to the angels, yet, nevertheless, hesitates not to assert, that he is the eternal God, who laid the foundation of the earth. We must remember, therefore, that whenever Christ, in the capacity of Mediator, addresses the Father, he comprehends, under the name of God, the Divinity which belongs also to himself. Thus, when he said to his Apostles, “I go unto the Father, for my Father is greater than I,”287 he attributes not to himself a secondary Divinity, as if he were inferior to the Father with respect to the eternal essence, but because, having obtained the glory of heaven, he gathers together the faithful to a participation of it with him; he represents the Father to be in a station superior to himself, just as the illustrious perfection of the splendour which appears in heaven excels that degree of glory which was visible in him during his incarnate state. For the same reason, Paul says, in another place, that Christ “shall deliver up the kingdom to God, even the Father, that God may be all in all.”288 Nothing would be more absurd than to deny perpetual duration to the Deity of Christ. Now, if he will never cease to be the Son of God, but will remain for ever the same as he has been from the beginning, it follows, that by the name Father is intended the one sole Divine essence, which is common to them both. And it is certain that Christ descended to us, in order that, exalting us to the Father, he might at the same time exalt us to himself also, as being one with the Father. It is therefore neither lawful nor right to restrict the name of God exclusively to the Father, and to deny it to the Son. For even on this very account John asserts him to be the true God,289 that no one might suppose, that he possessed only a secondary degree of Deity, inferior to the Father. And I wonder what can be the meaning of these fabricators of new gods, when, after confessing that Christ is the true God, they immediately exclude him from the Deity of the Father; as though there could be any true God but one alone, or as though a transfused Divinity were any thing but a novel fiction.

XXVII. Their accumulation of numerous passages from Irenæus, where he asserts the Father of Christ to be the only and eternal God of Israel, is a proof either of shameful ignorance, or of consummate wickedness. For they ought to have considered, that that holy man was then engaged in a controversy with some madmen, who denied that the Father of Christ was the same God that has spoken by Moses and the Prophets, but maintained that he was I know not what sort of phantasm, produced from the corruption of the world. His only object, therefore, is to show that no other God is revealed in the Scripture than the Father of Christ, and that it is impious to imagine any other; and therefore we need not wonder at his frequently concluding, that there never was any other God of Israel than he who was preached by Christ and his Apostles. So, now, on the other hand, when a different error is to be opposed, we shall truly assert, that the God who appeared formerly to the patriarchs, was no other than Christ. If it be objected that it was the Father, we are prepared to reply, that, while we contend for the Divinity of the Son, we by no means reject that of the Father. If the reader attends to this design of Irenæus, all contention will cease. Moreover, the whole controversy is easily decided by the sixth chapter of the third book, where the good man insists on this one point: That he who is absolutely and indefinitely called God in the Scripture, is the only true God; but that the name of God is given absolutely to Christ. Let us remember that the point at issue, as appears from the whole treatise, and particularly from the forty-sixth chapter of the second book, was this: That the appellation of Father is not given in an enigmatical and parabolical sense to one who is not truly God. Besides, in another place he contends, that the Son is called God, as well as the Father, by the Prophets and Apostles. He afterwards states how Christ, who is Lord, and King, and God, and Judge of all, received power from him who is God of all; and that is with relation to the subjection in which he was humbled even to the death of the cross. And a little after he affirms, that the Son is the Creator of heaven and earth, who gave the law by the hand of Moses, and appeared to the patriarchs. Now, if any one pretends that Irenæus acknowledges the Father alone as the God of Israel, I shall reply, as is clearly maintained by the same writer, that Christ is one and the same; as also he applies to him the prophecy of Habakkuk: “God shall come from the south.” To the same purpose is what we find in the ninth chapter of the fourth book: “Therefore Christ himself is, with the Father, the God of the living.” And in the twelfth chapter of the same book he states, that Abraham believed in God, inasmuch as Christ is the Creator of heaven and earth, and the only God.