He proceeds to discuss the views held by Eunomius, and by the Church, touching the Holy Spirit; and to show that the Father, the Son, and the Holy Ghostare not three Gods, but one God. He also discusses different senses of Subjection, and therein shows that the subjection of all things to the Son is the same as the subjection of the Son to the Father
Thus much with regard to his profanity towards the Son. Now let us see what he says about the Holy Spirit. “After Him, we believe,” he says, “on the Comforter, the Spirit of Truth.” I think it will be plain to all who come across this passage what object he has in view in thus perverting the declaration of the faith delivered to us by the Lord, in his statements concerning the Son and the Father. Though this absurdity has already been exposed, I will nevertheless endeavour, in few words, to make plain the aim of his knavery.
As in the former case, he avoided using the name “Father,” that so he might not include the Son in the eternity of the Father, so he avoided employing the title Son, that he might not by it suggest His natural affinity to the Father; so here, too, he refrains from saying “Holy Spirit,” that he may not by this name acknowledge the majesty of His glory, and His complete union with the Father and the Son. For since the appellation of “Spirit,” and that of “Holy,” are by the Scriptures equally applied to the Father and the Son (for “God is a Spirit,” and “the anointed Lord is the Spirit before our face,” and “the Lord our God is Holy,” and there is “one Holy, one Lord Jesus Christ”) lest there should, by the use of these terms, be bred in the minds of his readers some orthodox conception of the Holy Spirit, such as would naturally arise in them from His sharing His glorious appellation with the Father and the Son, for this reason, deluding the ears of the foolish, he changes the words of the Faith as set forth by God in the delivery of this mystery, making a way, so to speak, by this sequence, for the entrance of his impiety against the Holy Spirit. For if he had said, “We believe in the Holy Spirit,” and “God is a Spirit,” any one instructed in things divine would have interposed the remark, that if we are to believe in the Holy Spirit, while God is called a Spirit, He is assuredly not distinct in nature from that which receives the same titles in a proper sense. For of all those things which are indicated not unreally, nor metaphorically, but properly and absolutely, by the same names, we are necessarily compelled to acknowledge that the nature also, which is signified by this identity of names, is one and the same. For this reason it is that, suppressing the name appointed by the Lord in the formula of the faith, he says, “We believe in the Comforter.” But I have been taught that this very name is also applied by the inspired Scripture to Father, Son, and Holy Ghost alike. For the Son gives the name of “Comforter” equally to Himself and to the Holy Spirit; and the Father, where He is said to work comfort, surely claims as His own the name of “Comforter.” For assuredly he Who does the work of a Comforter does not disdain the name belonging to the work: for David says to the Father, “You, Lord, hast helped me and comforted me,” and the great Apostle applies to the Father the same language, when he says, “Blessed be the God and Father of our Lord Jesus Christ, Who comforts us in all our tribulation”; and John, in one of his Catholic Epistles, expressly gives to the Son the name of Comforter. Nay, more, the Lord Himself, in saying that another Comforter would be sent us, when speaking of the Spirit, clearly asserted this title of Himself in the first place. But as there are two senses of the word παρακαλεῖν —one to beseech, by words and gestures of respect, to induce him to whom we apply for anything, to feel with us in respect of those things for which we apply—the other to comfort, to take remedial thought for affections of body and soul—the Holy Scripture affirms the conception of the Paraclete, in either sense alike, to belong to the Divine nature. For at one time Paul sets before us by the word παρακαλεῖν the healing power of God, as when he says, “God, Who comforts those that are cast down, comforted us by the coming of Titus”; and at another time he uses this word in its other meaning, when he says, writing to the Corinthians, “Now we are ambassadors for Christ, as though God did beseech you by us; we pray you in Christ's stead, be reconciled to God.” Now since these things are so, in whatever way you understand the title “Paraclete,” when used of the Spirit, you will not in either of its significations detach Him from His community in it with the Father and the Son. Accordingly, he has not been able, even though he wished it, to belittle the glory of the Spirit by ascribing to Him the very attribute which Holy Scripture refers also to the Father and to the Son. But in styling Him “the Spirit of Truth,” Eunomius' own wish, I suppose, was to suggest by this phrase subjection, since Christ is the Truth, and he called Him the Spirit of Truth, as if one should say that He is a possession and chattel of the Truth, without being aware that God is called a God of righteousness; and we certainly do not understand thereby that God is a possession of righteousness. Wherefore also, when we hear of the “Spirit of Truth,” we acquire by that phrase such a conception as befits the Deity, being guided to the loftier interpretation by the words which follow it. For when the Lord said “The Spirit of Truth,” He immediately added “Which proceeds from the Father,” a fact which the voice of the Lord never asserted of any conceivable thing in creation, not of anything visible or invisible, not of thrones, principalities, powers, or dominions, nor of any other name that is named either in this world or in that which is to come. It is plain then that that, from share in which all creation is excluded, is something special and peculiar to uncreated being. But this man bids us believe in “the Guide of godliness.” Let a man then believe in Paul, and Barnabas, and Titus, and Silvanus, and Timotheus, and all those by whom we have been led into the way of the faith. For if we are to believe in “that which guides us to godliness,” along with the Father and the Son, all the prophets and lawgivers and patriarchs, heralds, evangelists, apostles, pastors, and teachers, have equal honour with the Holy Spirit, as they have been “guides to godliness” to those who came after them. “Who came into being,” he goes on, “by the only God through the Only-begotten.” In these words he gathers up in one head all his blasphemy. Once more he calls the Father “only God,” who employs the Only-begotten as an instrument for the production of the Spirit. What shadow of such a notion did he find in Scripture, that he ventures upon this assertion? By deduction from what premises did he bring his profanity to such a conclusion as this? Which of the Evangelists says it? What apostle? What prophet? Nay, on the contrary every scripture divinely inspired, written by the afflatus of the Spirit, attests the Divinity of the Spirit. For example (for it is better to prove my position from the actual testimonies), those who receive power to become children of God bear witness to the Divinity of the Spirit. Who knows not that utterance of the Lord which tells us that they who are born of the Spirit are the children of God? For thus He expressly ascribes the birth of the children of God to the Spirit, saying, that as that which is born of the flesh is flesh, so that which is born of the Spirit is spirit. But as many as are born of the Spirit are called the children of God. So also when the Lord by breathing upon His disciples had imparted to them the Holy Spirit, John says, “Of His fullness have all we received.” And that “in Him dwells the fullness of the Godhead,” the mighty Paul attests: yea, moreover, through the prophet Isaiah it is attested, as to the manifestation of the Divine appearance vouchsafed to him, when he saw Him that sat “on the throne high and lifted up;” the older tradition, it is true, says that it was the Father Who appeared to him, but the evangelist John refers the prophecy to our Lord, saying, touching those of the Jews who did not believe the words uttered by the prophet concerning the Lord, “These things said Esaias, when he saw His glory and spoke of Him.” But the mighty Paul attributes the same passage to the Holy Spirit in his speech made to the Jews at Rome, when he says, “Well spoke the Holy Ghost by Esaias the prophet concerning you, saying, Hearing you shall hear and shall not understand,” showing, in my opinion, by Holy Scripture itself, that every specially divine vision, every theophany, every word uttered in the Person of God, is to be understood to refer to the Father, the Son, and the Holy Spirit. Hence when David says, “they provoked God in the wilderness, and grieved Him in the desert,” the apostle refers to the Holy Spirit the despite done by the Israelites to God, in these terms: “Wherefore, as the Holy Ghost says, Harden not your hearts, as in the provocation, in the day of temptation in the wilderness; when your fathers tempted me,” and goes on to refer all that the prophecy refers to God, to the Person of the Holy Ghost. Those who keep repeating against us the phrase “three Gods,” because we hold these views, have perhaps not yet learned how to count. For if the Father and the Son are not divided into duality, (for they are, according to the Lord's words, One, and not Two) and if the Holy Ghost is also one, how can one added to one be divided into the number of three Gods? Is it not rather plain that no one can charge us with believing in the number of three Gods, without himself first maintaining in his own doctrine a pair of Gods? For it is by being added to two that the one completes the triad of Gods. But what room is there for the charge of tritheism against those by whom one God is worshipped, the God expressed by the Name of the Father and the Son and the Holy Ghost?
Source: Against Eunomius (New Advent)