Yeshua taught that we discover the truth about spiritual reality by way of revelation from heaven, not by way of human reasoning. He said that we can come to know God only through Him: “No one has ever seen God; the only God (μονογενὴς θεὸς), who is at the Father’s side, he has made him known” (John 1:18). He presents himself as “the way, the truth, and the life – the true Bridge to divine life and eternal reality….
For example, when a religious leader named Nicodemus visited Yeshua to inquire who he was, Yeshua redirected the inquiry by asking what sort of man he was instead (John 3). Nicodemus was impressed with the reports of miracles ascribed to Yeshua and supposed that he was some sort of teacher sent from God. Yeshua, however, abruptly told him that unless he was “born from above” he would be unable to see the truth of the kingdom (John 3:3). He explained that no one can see the hidden kingdom of God apart from a spiritual “rebirth,” that is, a new mode of being that enables the person to enter another realm of existence altogether. Such transformation comes by means of the agency of God’s Spirit, that is, by an encounter with God that imparts heavenly life (רוח) to the soul…. Once that happens, the person is able to receive the truth of heavenly things.
Nicodemus objected to the idea of being “born again.” “How can a man be born when he is old? He cannot enter his mother’s womb and be born a second time, can he?” Perhaps he was suggesting that spiritual rebirth would be as impossible as physical rebirth. People are just too set in their ways to change… Yeshua reminded him of the distinction between the realm of the natural (“born of water”) and the realm of the spirit (“born of the Spirit”): “That which is born of the flesh is flesh, and that which is born of the Spirit is spirit. Do not marvel that I said to you, ‘You must be born again.’ The wind (ruach) blows wherever it will, and you hear the sound it makes, but do not know where it comes from and where it is going. So it is with everyone who is born of the Spirit.” When Nicodemus still expressed uncertainty about all this by asking “How can these things be?” Yeshua chided him for his shortsightedness: “If you don’t believe when I explain in earthly terms, how will you believe if I tell you about heavenly things?” As a respected teacher of Torah, Nicodemus should have known the prophetic teaching of “rebirth” from the Scriptures, such as Ezekiel 36:25-28, Jeremiah 31:33; and indeed he had a responsibility to know this truth. Moreover the general theme of Scripture concerned the coming of Messiah, the Son of Man, who would undo the curse that befell humanity through Adam’s transgression, and this meant a new beginning…