Lets look at the text.
"Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God.
Nicodemus saith unto him, How can a man be born when he is old? can he enter the second time into his mother's womb, and be born?
Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and [of] the Spirit, he cannot enter into the kingdom of God.
That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.
Marvel not that I said unto thee, Ye must be born again.
The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit." John 3
Now, you say that Jesus is talking about the natural birth when he says to be born of water and you justify it by using the other text that says everyone that is born of the flesh is flesh. Jesus was not saying that being born of the water is natural birth he was explaining why we all need to be born again b/c EVERYONE THAT IS BORN OF THE FLESH IS FLESH. FLESH AND BLOOD WILL NOT INHERIT THE KINGDOM OF GOD. Thanks for this conversation b/c i am literally receiving insight on this scripture. I never took it into thought how everyone who is born of the spirit is SPIRIT just as every one that is born of the flesh is FLESH. As I stated above before FLESH AND BLOOD WILL NOT INHERIT THE KINGDOM OF GOD.
Now Jesus would have to be stupid to have meant by saying except a man be born of the water and he meant by that according to your beliefs on this except a man be born into this world and is born of the spirit he cannot enter the kingdom of God. That doesnt make sense. Of course everyone that comes into this would comes through the flesh. Why would jesus say that when he knows that everyone that is born by a woman is born by the flesh. What is the use of Except like it is not going to happen. Everyone will be born of the water if being born of the water means being born by the flesh. You see that its not scriptural and it doesn't make sense. That usage of the scripture makes Jesus' words foolish and Jesus knows what he is talking about.
Concerning the other issue of the trinity the name of jesus it is really clear. Jesus is God manifest in the flesh. He is God with us "Immanuel". Since Jesus is God and was God the word before he came to this earth he is also the FATHER (Ex: Everlasting Father). We all know without a shadow of a doubt that Jesus is the only begotten Son of God, there need be no argument there. If Jesus was God and is God and God is a spirit and his spirit is called the holy spirit in reality Jesus is the Holy Spirit. Who's spirit did the 120 recieve on the day of pentecost? God's spirit and the spirit of his dear son. These are not two spirits b/c God and the son are one and the same person and so is the spirit in unity and oneness with the Godhead. This is in no way denying the Father or the Holy Spirit. We see and accept the Father and the Holy Spirit in Jesus Christ. All the fullness of the Godhead lives in Jesus Christ Bodily right? Do you see now? Only tradition and false teaching will prevent you or fear of changing your traditions. Hope you understand the truth and that God will give you understanding on this subject.
"For unto us a CHILD is born, unto us a SON is given: and the government shall be upon his shoulder: and his name shall be called WONDERFUL, COUNSELLOR, THE MIGHTY GOD, The EVERLASTIN FATHER, THE PRINCE OF PEACE.
Of the increase of [his] government and peace [there shall be] no end, upon the throne of David, and upon his kingdom, to order it, and to establish it with judgment and with justice from henceforth even for ever. The zeal of the LORD of hosts will perform this." Isa 9:6-7
Who is this? Doesn't this sound familiar? This must be God right? But it says unto us a child is born, a son is given. Wait God is not born, God has always been unless it is talking about Jesus Christ the only begotten son of God who was God manifested in the flesh.
Can I be any more clearer?