Who can comprehend the nature of God? Of course, only God Himself...
Who can comprehend the nature of God? Of course, only God Himself. But what is essentially important for our salvation, He reveals to us. Therefore, the Church has always tried to be precise in comprehending this Revelation, so it is necessary to clearly envision what is important for our coming to God.
The idea of the created nature of Jesus Christ was first expressed by the Alexandrian priest Arius at the beginning of the 4th century AD. The Church quite unanimously rejected this opinion as erroneous, because if it was not God who shared our life and our death with us, then there is no salvation from sin and death for us. Likewise, if the Holy Spirit is a faceless force (a sort of semolina porridge, God forgive me), then communion with a Personal God is impossible for us. In this case, again, there is no salvation, because the entire biblical faith collapses. After all, the Holy Spirit is precisely the One Who pours life into our hearts, and not in some Hellenistic "afterlife existence" (which is a non-biblical idea), but here and now. Thus, the Church believes that Jesus is the God-Man, consubstantial with the Father in His Divinity and consubstantial with us in His humanity, and the Holy Spirit is a Person, God, whom we worship together with the Father and the Son.
The arguments you write about do not seem convincing. Of course, Jesus prays—how else can a man (and God incarnate in a man as well) communicate with the Father? The manner of communion between the Father, the Son, and the Spirit in the Trinity is incomprehensible to us; but the God-Man Jesus Christ is humbled for our sake to such an extent that He also shares our manner of communion with the Father. As for the worship of Jesus Christ, the Holy Scripture says that it is precisely the belief that He is Lord that gives a person salvation. The Apostle Paul in his Epistles to the Romans ( 10:9), to the Philippians ( 2:6-11), and to the Colossians says that the will of God regarding our salvation is that we worship God in Jesus Christ, since "in Him dwells all the fullness of the Godhead bodily" ( 2:9). Obviously, the opinion of Arius regarding the created nature of the Son of God radically contradicts these last words of the apostle.
The Holy Spirit, of course, can act in every person, and in many people at once, for He is Almighty! And the "divided tongues, as of fire" are only visible signs of His coming, not He Himself. Ultimately, I reply to letters from many people—does my personality thereby divide into separate pieces of paper?
It is truly important for us to know and accept what is expressed in the dogmatic teaching of the seven Ecumenical Councils, including the concept of the Trinity, first explicitly formulated by St. Theophilus of Antioch in the second half of the 2nd century. The Triunity of God means for us that He a) is not like us; b) transcends us and our understanding; c) has life in Himself; d) gives us the opportunity to share with Him the fullness of His life. This is in brief, of course. The Church's teaching on the Triune God is profound and significant enough to become acquainted with it through the Bible itself and specialized sources.
Everyone, of course, is free to choose their own confession. But it is important for Christians to remember that every dogmatic assertion has consequences in practical spiritual life, and these consequences must be seen and evaluated by their fruits.
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16:13 And Jesus coming - There was a large interval of time between what has been related, and what follows. The passages that follow were but a short time before our Lord suffered. Mar 8:27; Luk 9:18.
16:14 Jeremiah, or one of the prophets - There was at that time a current tradition among the Jews, that either Jeremiah, or some other of the ancient prophets would rise again before the Messiah came.
16:16 Peter - Who was generally the most forward to speak.
16:17 Flesh and blood - That is, thy own reason, or any natural power whatsoever.
16:18 On this rock - Alluding to his name, which signifies a rock, namely, the faith which thou hast now professed; I will build my Church - But perhaps when our Lord uttered these words, he pointed to himself, in like manner as when he said, Destroy this temple, Joh 2:19; meaning the temple of his body. And it is certain,that as he is spoken of in Scripture, as the only foundation of the Church, so this is that which the apostles and evangelists laid in their preaching. It is in respect of laying this, that the names of the twelve apostles (not of St. Peter only) were equally inscribed on the twelve foundations of the city of God, Rev 21:14.The gates of hell - As gates and walls were the strength of cities, and as courts of judicature were held in their gates, this phrase properly signifies the power and policy of Satan and his instruments.Shall not prevail against it - Not against the Church universal, so as to destroy it. And they never did. There hath been a small remnant in all ages.
16:19 I will give thee the keys of the kingdom of heaven - Indeed not to him alone, (for they were equally given to all the apostles at the same time, Joh 20:21-23) but to him were first given the keys both of doctrine and discipline. He first, after our Lord's resurrection, exercised the apostleship, Act 1:15. And he first by preaching opened the kingdom ofheaven, both to the Jews, Act 2:14etc , and to the Gentiles, Act 10:34etc Under the term of binding and loosing are contained all thoseacts of discipline which Peter and his brethren performed as apostles: and undoubtedly what they thus performed on earth, God confirmed in heaven. Mat 18:18.
16:20 Then charged he his disciples to tell no one that he was the Christ - Jesus himself had not said it expressly even to his apostles, but left them tb infer it from his doctrine and miracles. Neither was it proper the apostles should say this openly, before that grand proof of it, his resurrection. If they had, they who believed them would the more earnestly have sought to take and make him a king: and they who did not believe them would the snore vehemently have rejected and opposed such a Messiah.