John 3:34

"For God giveth not the Spirit by measure." Again, as I said, he brings down his discourse to lower ground, varying it and making it suitable to be received by those who heard it then; otherwise he could not have raised them and increased their fear. For had he spoken anything great and sublime concerning Jesus Himself, they would not have believed, but might even have despised Him. Therefore he leads up all to the Father, speaking for a while of Christ as of a man. But what is it that he saith, "God giveth not the Spirit by measure"? He would show that we all have received the operation of the Spirit, by measure, (for in this place he means by "Spirit" the operation of the Spirit, for this it is that is divided,) but that Christ hath all Its operation unmeasured and entire. Now if His operations be unmeasured, much more His Essence. Seest thou too that the Spirit is Infinite? How then can He who hath received all the operation of the Spirit, who knoweth the things of God, who saith, "We speak that We have heard, and testify that We have seen" (c. iii. 11), be rightly suspected? He saith nothing which is not "of God," or which is not of "the Spirit." And for a while he uttereth nothing concerning God the Word, but maketh all his doctrine credible by (reference to) the Father and the Spirit. For that there is a God they knew, and that there is a Spirit they knew, (even though they held not a right opinion concerning Him,) but that there is a Son, they knew not. It is for this reason that he ever has recourse to the Father and the Spirit, thence confirming his words.

"For He whom God hath sent speaketh the words of God." Himself is the true God, and God sent Him: God sent God. Join both, one God, true God sent by God. Ask concerning them singly, He is God; ask concerning them both, they are God. Not individually God, and both Gods; but each individual God, and both God. For so great is the charity of the Holy Spirit - there, so great the peace of unity, that when thou questionest about them individually, the answer to thee is, God; when thou askest concerning the Trinity, thou gettest for answer, God. For if the spirit of man, when it cleaves to God, is one spirit, as the apostle openly declares, "He that is joined to the Lord is one spirit;" how much more is the equal Son, joined to the Father, together with Him one God! Hear another testimony. You know how many believed, when they sold all they had and laid it at the apostles' feet, that it might be distributed to each according to his need; and what saith the Scripture of that gathering of the saints? "They had one soul and one heart in the Lord." If charity made one soul of so many souls, and one heart of so many hearts, how great must be the charity between the Father and the Son! Surely it must be greater than that between those men who had one heart. If, then, the heart of many brethren was one by charity, if the soul of many brethren was one by charity, wouldst thou say that God the Father and God the Son are two? If they are two Gods, there is not the highest charity between them. For if charity is here so great as to make thy soul and thy friend's soul one soul, how can it be then that the Father and the Son is not one God? Far be unfeigned faith from this thought. In short, how excellent that charity is, understand hence: the souls of many men are many, and if they love one another, it is one soul; still, in the case of men, they may be called many souls, because the union is not so strong. But there it is right for thee to say one God; two or three Gods it is not right for thee to say. From this, the supreme and surpassing excellency of charity is shown thee to be such, that a greater cannot be.

"For He whom God hath sent speaketh the words of God." This, of course, he said of Christ, to distinguish himself from Christ. What then? Did not God send John himself? Did he not say himself, "I am sent before Him"? and, "He that sent me to baptize with water"? And is it not of John that it is said, "Behold, I send my messenger before Thee, and he shall prepare Thy way"? Does he not himself speak the words of God, he of whom it is said that he is more than a prophet? Then, if God sent him too, and he speaks the words of God, how do we understand him to have distinctly said of Christ, "He whom God hath sent speaketh the words of God"? But see what he adds: "For God giveth not the Spirit by measure." What is this, "For God giveth not the Spirit by measure"? We find that God does give the Spirit by measure. Hear the apostle when he says, "According to the measure of the gift of Christ." To men He gives by measure, to the only Son He gives not by measure. How does He give to men by measure? "To one is given by the Spirit the word of wisdom: to another the word of wisdom according to the same Spirit; to another faith by the same Spirit; to another prophecy; to another discerning of spirits; to another kinds of tongues; to another the gift of healing. Are all apostles? Are all prophets? Are all teachers? Are all workers of miracles? Have all the gift of healing? Do all speak with tongues? Do all interpret?" This man has one gift, that man another; and what that man has, this has not: there is a measure, a certain division of gifts. To men, therefore, it is given by measure, and concord among them makes one body. As the hand receives one kind of gift to work, the eye another to see, the ear another to hear, the foot another to walk; nevertheless the soul that does all is one, in the hand to work, in the foot to walk, in the ear to hear, in the eye to see; so are also the gifts of believers diverse, distributed to them as to members, to each according to his proper measure. But Christ, who gives, receives not by measure.

(Tr. xiv. c. 8) Christ then Himself is God the true, and God hath sent Him; God hath sent God, join both together; they are One God. For John saith, Whom God hath sent, to distinguish Christ from himself. What then, was not John himself sent by God? Yes; but mark what follows, For God giveth not the Spirit by measure unto Him. To men He giveth by measure, to His only Son He giveth not by measure. To one man is given by the Spirit the word of wisdom, to another the word of knowledge: one has one thing, another another; for measure implies a kind of division of gifts. But Christ did not receive by measure, though He gave by measure.