I would offer as prescribed in 2 Corithians 4:18. One of the keys that unlocks the understanding. We should try and do what is called "mix faith" in resect to those who heard the gospel and did receive the reSt of Christ as he works in us to make our hearts soft . (Hebrew 4)
2 Corinthians 4:18 While we look not at the things which are seen, but at the things which are not seen: for the things which are seen are
temporal; but the things which are not seen are eternal.
God is simply not a man (a created being) that is a impossibility. Jesus as the Son of man said of his own corrupted flesh
it profits nothing , other than a wonderful outward demonstration of the invisible work of God who promised to pour out His Spirit, the one source of life on dead flesh , typified as sinful (what the eyes see the temporal) In order to create a new creation as His eternal bride.
In John 6 many disciples no longer followed after Jesus. They were hoping in a fleshly God as a fleshly mediator (daysman) Jesus, to stand between God and man as a infallible umpire. They walked away in unbelief. (no faith) that alone comes from hearing God not seen called the hearing of faith . A perfect example of the phrase no faith in reference to the generation of unconverted mankind. They like Cain would have nothing to do with a God not seen.
.Jesus, as the Son of man refused to stand in the Holy unseen place of God's glory. Peter who mixed faith in what he did see and hear understood as the Holy Spirit revealed it to Peter. and therefore it was not revealed by the flesh and blood of Jesus. but again by the Holy Spirit .His word is Spirit and by His Spirit he gives us spirit life
John 6:68Then Simon Peter answered him, Lord, to whom shall we go? thou hast the
words of eternal life
Joel 2:28 And it shall come to pass afterward, that I will
pour out my spirit upon all flesh; and your sons and your daughters shall prophesy, your old men shall dream dreams, your young men shall see visions:
Coming as theophany or vision like that of Melchedik would not fit the promised demonstration. (Isaiah 53) The Son of man, Jesus came in the corrupted flesh typified as sinful to demonstrate he is the lamb of God slain from before the foundation of the world. He came as our High Priest continually without beginning or end to do what Melchedik a vision without substance (no flesh and blood) could not do the law kills the body has already been judged as dead (corruption) . A living sacrifice is what is needed. The dead know nothing. The pouring out of His Spirit as the law of faith (believing God) heals.
Romans 8:3 For what
the law "could not do", in that it was weak through the flesh, God sending his own Son in the
likeness of sinful flesh, and for sin, condemned sin in the flesh: