Ambrose of Milan : The same, then, is the Lord, who is the Spirit of the Lord; that is, he called the Spirit of the Lord, Lord, just as also the apostle says: "Now the Lord is a spirit, and where the Spirit of the Lord is, there is liberty." You have then, the Lord called also the Holy Spirit; for the Holy Spirit and the Son are not one person but one substance. — On the Holy Spirit 2.1.18 Ambrose of Milan : As then young children, so the Jews also, are under a schoolmaster. The Law is our schoolmaster, the schoolmaster brings us to our Master; and our One Master is Christ: Neither be ye called masters, for one is your Master, even, Christ. The schoolmaster is feared, the Master shews the way of salvation. Thus fear brings us to liberty, liberty to faith, faith to love; love obtains adoption, adoption the inheritance. Where then faith is there is liberty; for the servant acts from fear, the free-man by faith; the one by the letter, the other by grace; the one in slavery the other by the Spirit; but where the Spirit of the Lord is, there is liberty. — Letter 75.5 Ambrosiaster : Because God is Spirit, he has given through Christ the law of the Spirit, which persuades us to believe in invisible things which our reasoning understands spiritually. This law gives liberty because it demands only faith, and because it believes what it does not see, we are able to be rescued from our condition. — COMMENTARY ON PAUL'S EPISTLES John Chrysostom : But since some maintain that the expression, "when one shall turn to the Lord," is spoken of the Son, in contradiction to what is quite acknowledged; let us examine the point more accurately, having first stated the ground on which they think to establish this. What then is this? Like, saith one, as it is said, "God is a Spirit;" so also here, 'The Lord is a Spirit.' But he did not say, 'The Lord is a Spirit,' but, "The Spirit is the Lord." And there is a great difference between this construction and that. For when he is desirous of speaking so as you say, he does not join the article to the predicate. And besides, let us review all his discourse from the first, of whom hath he spoken? for instance, when he said, "The letter killeth, but the Spirit giveth life:" and again, "Written not with ink, but with the Spirit of the living God;" was he speaking of God, or of the Spirit? It is very plain that it was of the Spirit; for unto It he was calling them from the letter. For lest any, hearing of the Spirit, and then reflecting that Moses turned unto the Lord, but himself unto the Spirit, should think himself to have the worse, to correct such a suspicion as this, he says, "Now the Spirit Is the Lord." This too is Lord, he says. And that you may know that he is speaking of the Paraclete, he added, "And where the Spirit of the Lord is, there is liberty." For surely you will not assert, that he says, 'And where the Lord of the Lord is.' "Liberty," he said, with reference to the former bondage. — Homily 7 on 2 Corinthians Severian of Gabala : The person who has been blessed with the Spirit of the Lord has been set free from the condemnation of the law, for the spiritual gifts are given their power through the Spirit. Moreover, the gift is given freely to those who are ready to receive it. — PAULINE COMMENTARY FROM THE GREEK CHURCH Theodore of Mopsuestia : If Paul had wanted to say that the Lord is a spirit, he would have left the article the out. Compare John [4:24], where in speaking to the Samaritan woman, Jesus says that God is a spirit, meaning that he does not have a body. But in this case Paul puts the article in, which proves that he is not saying that the Lord is a spirit but rather that the Spirit is Lord. — PAULINE COMMENTARY FROM THE GREEK CHURCH Theodoret of Cyrus : Paul shows here that the Spirit and God are equal. Moses turned his eyes toward God; we turn ours toward the Holy Spirit. Paul would hardly have said that what the Spirit reveals is greater than what Moses saw if the Spirit were merely a creature and not God himself. — COMMENTARY ON THE SECOND EPISTLE TO THE CORINTHIANS 305-6