Again these matters seem too weighty for you. And you are not correct again.
A quick question, do you believe in the trinity, or Oneness doctrine? And do you believe that Jesus Christ is God manifest in the flesh?
You say Christ is the Holy Ghost? And yet I showed one of the test for a person to know whether they are in the faith (as Paul gave to the Corinthians). The first test was to know that Jesus Christ is in you. This identifies who Christ is. He is Jesus Christ.
Another evidence of who Christ is is when Peter said that Jesus was the "Christ" the "Son of God". The Son of God is Christ and those believers in Christ can say firmly that Jesus Christ is the Son of God.
You have a heretical view of God. There are not 3 divine Spirits (the Holy Spirit, the Spirit of Christ, and the Spirit of the Father). That is what the heresies of Arianism and Tritheism teach. If there were 3 Spirits there would be 3 Gods. No, there are three persons in one God, and there is only one divine Spirit.
Ephesians 2:18 for through Him we both have our access in one Spirit to the Father.
Ephesians 4:4 There is one body and one Spirit, just as also you were called in one hope of your calling;
1 Corinthians 12:13 For by one Spirit we were all baptized into one body, whether Jews or Greeks, whether slaves or free, and we were all made to drink of one Spirit.
The Athanasian Creed is accepted by practically all Christian denominations:
The Father was neither made nor created nor begotten;
the Son was neither made nor created, but was alone begotten of the Father;
the Spirit was neither made nor created, but is proceeding from the Father and the Son.
Thus there is one Father, not three fathers; one Son, not three sons; one Holy Spirit, not three spirits.
I did not say that Christ is the Holy Spirit, as you claim - you are disingenuously putting words into my mouth. I said the Holy Spirit = the Spirit of Christ = Christ in you. And I gave you not just one, but four pieces of scriptural evidence which proves that. None of which you can deny.
But if my words are not enough to convince you that the Spirit of Christ is the Holy Spirit then perhaps you should listen to the overwhelming majority of commentators, both ancient and modern, who agree with me. I'll focus on just one of those passages Rom 8:9-10, but they all agree that the Spirit of Christ in the other verses I quotes is the Holy Spirit. In fact, I could not find a single commentator who agrees with your view.
John Gill
now if any man have not the Spirit of Christ, he is none of his. By "the Spirit of Christ", is not meant the human soul of Christ; nor his divine nature; nor his Gospel, which is the Spirit that gives life; but the Holy Ghost, the third person in the Trinity, the same which is called the Spirit before; and proves Christ to be God, he proceeds from him as from the Father, is sent by him, and with which Christ's human nature was fitted and filled.
And if Christ be in you,.... Not as he is in the whole world, and in all his creatures, or circumscriptively, and to the exclusion of himself elsewhere; for his person is above in heaven, his blood is within the vail, his righteousness is upon his people, and his Spirit and grace are in them; and so he comes to be in them, he is formed in their hearts by the Spirit of God in regeneration, when the Father reveals him not only to them, but in them; and he himself enters and takes possession of them as his own, manifests himself to them, communicates his grace, and grants them communion with him.
Charles Hodge
Now if any man have not the Spirit of Christ. It is obvious that the Spirit of Christ is identical with the Spirit of God. The one expression is interchanged with the other: ‘If the Spirit of God dwell in you, you are true Christians; for if the Spirit of Christ be not in you, you are none of his.' This is the reasoning of the apostle. "Spirit of Christ," therefore, can no more mean the temper or disposition of Christ, than "Spirit of God" can mean the disposition of God. Both expressions designate the Holy Ghost, the third person in the adorable Trinity. The Holy Spirit is elsewhere called the Spirit of Christ, Galatians 4:6; Philippians 1:19; 1 Peter 1:11. Whatever the genitive expresses in the one case, it does in the other. He is of the Spirit of Christ in the same sense in which he is the Spirit of God. In other words, the Spirit stands in the same relation to the second, that he does to the first person of the Trinity.
John Calvin
But if any have not the Spirit of Christ, etc. .... But let readers observe here, that the Spirit is, without any distinction, called sometimes the Spirit of God the Father, and sometimes the Spirit of Christ; and thus called, not only because his whole fulness was poured on Christ as our Mediator and head, so that from him a portion might descend on each of us, but also because he is equally the Spirit of the Father and of the Son, who have one essence, and the same eternal divinity. As, however, we have no intercourse with God except through Christ, the Apostle wisely descends to Christ from the Father, who seems to be far off:
10.But if Christ be in us, etc. What he had before said of the Spirit he says now of Christ, in order that the mode of Christ’s dwelling in us might be intimated; for as by the Spirit he consecrates us as temples to himself, so by the same he dwells in us.
Charles Ellicott
Verse 9
(9) Such is not your case—if at least the Spirit of God and of Christ dwells in you, as it should in every Christian.
The Spirit of God . . . the Spirit of Christ.—It is to be observed that these two terms are used as convertible. The Spirit of Christ is indeed the presence of Christ Himself in the soul. (Comp. John 14:16; John 14:18; John 14:20, “I will pray the Father, and He shall give you another Comforter, that He may abide with you for ever. . . . I will not leave you comfortless (orphans): I will come to you. . . . At that day ye shall know that I am in My Father, and ye in Me, and I in you.”)
Leon Morris
The Spirit of Christ is not a common expression (but cf. Acts 16:7; Phil. 1:19; 1 Pet. 1:11). Spirit, of course, is to be spelled with a capital, for the word refers to the Holy Spirit (though Schonfield has “spirit of Christ”; this would mean “if anyone does not live in the same way, in the same spirit as Christ”). The Spirit of Christ is another way of referring to the Spirit of God. The doctrine of the Trinity had not yet been formulated, but it is this kind of expression that led Christians in due time to speak of God as triune.39 Paul sees the Spirit as integrally related to Christ as well as to the Father. We receive him on the basis of Christ’s saving work, and without that there would be no activity of the Spirit in the specifically Christian sense (cf. John 7:39).4
There seems little difference between the indwelling of Christ and that of the Holy Spirit. The indwelling of the Spirit is mentioned both before and after this verse, and there is no indication of a change of subject. Paul is not identifying Christ with the Spirit, but he is saying that in the indwelling of the Spirit none less than Christ is present.“ ‘Spirit in you’ is impossible apart from ‘Christ in you’. Union with Christ is the only way into the life of the Age to Come, of which the distinguishing mark is the Spirit”
Albert Barnes
Have not the Spirit of Christ - ...The word “spirit” is often used to denote the temper, disposition; thus we say, a man of a generous spirit, or of a revengeful spirit, etc. It may possibly have this meaning here, and denotes that he who has not the temper or disposition of Christ is not his, or has no evidence of piety. But the connection seems to demand that it should be understood in a sense similar to the expression “the Spirit of God,” and “the Spirit of him that raised up Jesus” Romans 8:11; and if so, it means the Spirit which Christ imparts, or sends to accomplish his work John 14:26, the Holy Spirit, sent to make us like Christ, and to sanctify our hearts. And in this sense it evidently denotes the Spirit which Christ would send to produce in us the views and feelings which he came to establish, and which shall assimilate us to himself. If this refers to the Holy Spirit, then we see the manner in which the apostle spoke of the Saviour. He regarded “the Spirit” as equally the Spirit of God and of Christ, as proceeding from both; and thus evidently believed that there is a union of nature between the Father and the Son. Such language could never be used except on the supposition that the Father and Son are one; that is, that Christ is divine.
And if Christ be in you - ... This real and vital union is formed by the one Spirit of Christ, the Holy Spirit pervading the Head and the members of the mystical body; 1 Corinthians 6:17; 1 Corinthians 12:13; 1 John 3:24; 1 John 4:13. It is true, indeed, that the essential presence of Christ‘s Spirit is everywhere, but he is present in Christ‘s members, in a special way, as the fountain of spiritual influence. This spiritual presence, which is the bond of union, is manifested immediately upon a man‘s reception of Christ by faith. From that hour he is one with Christ, because the same Spirit lives in both.
Jamieson, Fausset, & Brown
if any man have not the Spirit of Christ — Again, this does not mean “the disposition or mind of Christ,” but the Holy Ghost; here called “the Spirit of Christ,” just as He is called “the Spirit of life in Christ Jesus” (see on Romans 8:2). It is as “the Spirit of Christ” that the Holy Ghost takes possession of believers, introducing into them all the gracious, dove-like disposition which dwelt in Him (Matthew 3:16; John 3:34). Now if any man‘s heart be void, not of such dispositions, but of the blessed Author of them, “the Spirit of Christ.”
And if Christ be in you — by His indwelling Spirit in virtue of which we have one life with him.
Matthew Henry
If any man has not the Spirit of Christ, he is none of his. To be Christ's ... Having the Spirit of Christ is the same with having the Spirit of God to dwell in us.
If Christ be in you. Observe, If the Spirit be in us, Christ is in us. He dwells in the heart by faith, Ephesians 3:17.
Matthew Poole
If any man have not the Spirit of Christ, he is none of his; if he has not the same Spirit which in the former part of the verse is called the Spirit of God: it is called the Spirit of Christ, because it proceeds from him, and is procured by him, John 14:26 John 16:7 Galatians 4:6. When he saith such a one is none of Christ’s, he means, that he doth not peculiarly belong to Christ, he hath no special interest in him, is no true member of him. As a merchant sets his seal upon his goods, so doth Christ his Spirit upon his followers, Ephesians 1:13.
If Christ be in you; before he said, the Spirit of God and Christ dwelt in them; here, Christ himself. Christ dwells in believers by his Spirit.
Henry Alford
the Spirit of Christ (= πν. θεοῦ above. Obs. here that πν. θεοῦ, πν. χριστοῦ, and χριστός, are all used of the Holy Spirit indwelling in the Christian),
Charles Spurgeon
“If any man have not the Spirit of Christ, he is none of his.” If he has not the Holy Ghost really dwelling in him, guiding him, directing him, teaching him, comforting him, supporting him, he is none of Christ’s. And if we do not exhibit the Spirit of Christ in our character,-if we have not gentleness, meekness, purity, holiness, benevolence, we are none of Christ’s.
William Burkitt
That the Holy Ghost is called the Spirit of Christ passively, and by way of reception, as being bestowed upon him, and received by him; also actively, and by way of collation, as being bestowed by him, and conveyed from him.
If Christ be in you, that is by his Holy Spirit, the body is dead, that is, still subject to death, because of sin,
Justin Edwards
The Spirit of Christ; the Holy Spirit, producing in him in some measure a likeness to Christ, and leading him earnestly to desire that it may be perfected.
If Christ be in you; by his Spirit, producing in you a likeness to himself.
William Godbey
9. “You are not in carnality, but in the Spirit, if indeed the Spirit of God dwelleth in you. But if any one have not the Spirit of Christ, he is not his.” Here we have a beautiful and lucid affirmation of the divine unity. “Spirit” occurring three times in this verse. First, He is the Holy Spirit, in the second place, the Spirit of the Father; and in the third instance, the Spirit of the Son, and identical throughout, illustrating clearly the identity of the three persons constituting the Godhead, and the identity of the Spirit of the Father, Son and Holy Ghost. The same is clearly revealed in Acts 5, where Holy Ghost, in Romans 8:3, God, in Romans 8:4, and Spirit of the Lord, i. e., Christ, in Romans 8:9, are all used synonymously. It is exceedingly pertinent for us to be specific at this point, as some have gotten tangled discriminating between the Spirit of Jesus and the Holy Ghost and the Spirit of God, and gone off into the tri-theistic heresy to their spiritual detriment.
Robert Haldane
Verse 9
The same Spirit that is called the Spirit of God in the preceding part of the sentence, is in this latter part called the Spirit of Christ, because Christ having, by virtue of His sacrifice, obtained the Spirit for His people, sends Him into their hearts, John 16:7. Christ, then, who sends the Holy Spirit, must be God. Every Christian has the Spirit of Christ dwelling in him. When Christ takes possession of any man as His, He puts His Holy Spirit within him. Without the presence of His Spirit, we can have no interest in Christ.