God forsaw ALL of us to be born in the future as being "in Adam" that Adam stood for physical humanity, so when he fell, we fell with him!
Jesus is second Adam, head over spiritual humanity, those been redeemed by His blood!
Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of
Adam's transgression, who is
the figure of him that was to come.
Jesus came (that is was born) exactly as the first man Adam was created.
A living soul. Flesh blood and bone from the ground with the breath of life from God who beget him in the virgin Mary.
He was different from those born from Adam in that he was begotten of God by the Spirit of the living God and therefore was indwelt with the Spirit of God from his being begotten in the woman.
This man the Son of the Living God said, "That which is born of the flesh is flesh." Not a word about sin implied relative to this statement. Was Jesus born of the flesh?
Paul later on says this in the quote unquote resurrection chapter.
And so it is written, The first man Adam was made a living soul; the last Adam a quickening spirit. Howbeit that not first which is spiritual, but that which is natural;
and afterward that which is spiritual. Afterward what? The first man Adam has not yet been made spiritual. After the resurrection. This is speaking of the last Adam, Jesus who came in the figure of the first Adam being a new creation by being, the beginning, the firstborn from the dead;
That which is born of the spirit is spirit.
Thou will not leave my soul in Hades. OT Sheol. Neither neither wilt thou suffer thine Holy One to see corruption. A quickening spiritual being.
This passage needs to be re-thought.
For thou hast possessed my reins: thou hast covered me in my mother's womb. I will praise thee; for I am fearfully [and] wonderfully made: marvellous [are] thy works; and [that] my soul knoweth right well. My substance was not hid from thee, when I was made in secret, [and] curiously wrought in the lowest parts of the earth. (Sheol) Thine eyes did see my substance, yet being unperfect;
So also Christ glorified not himself to be made an high priest; but he that said unto him,
Thou art my Son,
to day have I begotten thee. Who in the days of his flesh, when he had offered up prayers and supplications with strong crying and tears unto him that was able to save him from death, and was heard in that he feared; Though he were a Son, yet learned he obedience by the things which he suffered;
And being made perfect, he became the author of eternal salvation unto all them that obey him;
This is speaking of the resurrection of Jesus the Christ the Son of the Living God.
From imperfect flesh bones and blood to perfect flesh bones and spirit.
That in all he might have the preeminence.
Marvel not that I said unto thee, Ye must be born again.
Disagree if you like but show from scripture if any thing is wrong or out of context.