Of course, he had heard nothing of this in the Pharisaic schools. They had lost spiritual understanding of spiritual things and brought what was lofty down to the sensory and earthly.
What does it mean to be born of the Spirit? How does he become spirit?
These were the questions whose resolution he now needed.
The Savior, anticipating or answering such perplexities, says: "The Spirit breathes where He wills, and you hear His voice, but you do not know whence He comes and whither He goes. So it is with everyone born of the Spirit."
Among the ancient interpreters of Holy Scripture, the holy fathers and teachers of the Church, we find two ways of understanding these words of the Savior.
They correspond to the twofold understanding and interpretation of the word Spirit.
This word signifies the Holy Spirit, as we have seen. It also signifies wind, or the breath of the wind (Gen 8:1; 3 Kgs 19:11 and elsewhere).
Here some, such as Augustine and Origen, understand the word in the first meaning. Others, such as Chrysostom, Cyril of Alexandria, and Theophylact, understand it in the latter meaning.
According to the interpretation of the first group, the meaning of the Savior's words is this.
The Spirit breathes where He wills. The Holy Spirit pours out His gracious gifts upon whom He wills.
That is, He pours them out not upon all, but only upon those who are disposed to receive His grace.
"And you hear His voice." You hear His words in the Psalm, in the Gospel, in preaching, in all Scripture, and especially in the book of Acts.
Or, as others note, the Savior here prophesies the outpouring of the Holy Spirit upon the Apostles on the day of Pentecost.
Then there came a sound from heaven as of a rushing mighty wind (Acts 2:2).
"But you do not know whence He comes and whither He goes." You do not know the ways and actions of this Spirit, because you do not understand Scripture, but hear only the sounds of its words.
"So it is with everyone born of the Spirit." That is, the actions of the Spirit are also incomprehensible.
They say this opinion is favored, first, by the fact that the definite article is left before the word spirit here.
Didymus, examining the different meanings of the word spirit in Scripture, observed that when this word is set with the definite article, it signifies the Holy Spirit.
Second, both above and below this passage, the name Spirit means the Holy Spirit.
Therefore here too the same Holy Spirit must be understood by Spirit.
Third, if this word is understood of the wind, then it is incorrectly said: "you do not know whence it comes and whither it goes."
For not everyone is ignorant of where the wind comes from and where it goes, as blessed Augustine says.
According to the interpretation of those who understand wind by the word spirit, the meaning of the Savior's saying is this.
Spiritual birth, necessary for participation in the Kingdom of the Messiah, is incomprehensible.
Why marvel at this, when even in the nature surrounding us much is incomprehensible?
Take, for example, the wind. It blows where it wills, not in one direction and not in one place.
It blows with such power that it cannot be restrained. You hear its sound and roar, but you do not know where it begins and where it ends.
So too spiritual rebirth is incomprehensible to man. It can be known only by its fruits and consequences, not in the very act of rebirth itself.
The grounds for understanding wind by spirit, and for interpreting the Savior's whole saying in the sense just stated, are the following.
First, Nicodemus is instructed about the incomprehensibility of spiritual rebirth by the incomprehensibility of many things in nature, namely, the wind.
"Having said, 'That which is born of the Spirit is spirit,' Christ was already drawing Nicodemus away from fleshly representations.
"But since he still did not understand what His words meant, Christ transfers his thought to another image.
"He does not detain him among gross bodies, and He does not speak of beings that are altogether bodiless, since Nicodemus could not grasp such things even when hearing of them.
"Rather, He finds something between bodily and bodiless being, the movement of the wind, and through it instructs him" (Chrysostom).
Second, there are the words: "you hear its voice."
"It is precisely of the wind that He, Christ, says: 'You hear its voice.'
"That these words were spoken precisely of the wind is clear from this: Christ, speaking with one who did not believe and did not know the actions of the Spirit, would not have said, 'You hear His voice'" (Chrysostom).
Third, there are the words: "So it is with everyone born of the Spirit."
From these words it follows that the preceding words contain a comparison, and these contain the thing compared, or the expression of the main thought.
But in a comparison the objects must be distinct.
Therefore, if in the last words the Holy Spirit must be understood by Spirit, then in the first words something else must be understood, namely, the wind.
Considering these two interpretations and their grounds, one cannot fail to see that the latter is more fitting to the sense of the text.
The grounds on which it rests are also stronger.
In the first interpretation, there is no complete correspondence between the objects compared.
When the word spirit signifies the Holy Spirit, it is not always set with the definite article.
Even above, in this same discourse (Jn 3:5), it stands without the article.
Likewise, when wind is spoken of, the article is sometimes also placed before the word spirit (3 Kgs 19:11).
In the sequence of this discourse, the word spirit does not everywhere signify the Holy Spirit (Jn 3:6).
And although we see the movement of the wind, we do not know whence it comes and whither it goes. We know neither its beginning nor its end.
Nevertheless, the first explanation cannot be entirely denied.
We cannot think that the Holy Spirit is not at all meant here by the word spirit.
It is not without reason that the Evangelist John expressed this notion by this very word and not by another.
He did otherwise in another place, using the word anemos to signify wind (Jn 3:6, 18).
For this same reason, the last of the explanations given cannot be regarded as complete when only wind is understood by the word spirit.
One may think that the all-wise Teacher deliberately used here a word that signifies both notions: the notion of wind and the notion of the divine Spirit.
One may recall here that breathing of Jesus Christ by which He communicated the Holy Spirit to the Apostles.
He breathed and said to them, "Receive the Holy Spirit" (Jn 20:22).
The visible breathing of the Savior symbolically signified the gift of the Holy Spirit to the Apostles.
That is, it was both the sign and the thing signified together.
Such designations of invisible and spiritual things by sensory and visible things are also found in the Old Testament books.
For example, the unknown works of God are likened to the unknown paths of the wind (Eccl 11:5).
Thus, in connection with the preceding words, the fuller meaning of the Savior's words under consideration may be expressed as follows.
You, Nicodemus, hear from Me about spiritual rebirth, necessary for everyone who wishes to participate in My Kingdom.
You do not understand. You marvel and are perplexed about what rebirth from the Spirit is.
But can one refuse to believe everything that is incomprehensible to man, that is above his understanding, and that does not fall under his senses?
Can one doubt all such things as impossible?
Remember that in visible nature there are, and daily occur, many things hidden from man's senses.
They are incomprehensible, yet no one doubts them and no one rejects them.
Here, for example, is spirit, the wind. It blows where it wills, unhindered and unrestrained.
You perceive this, but you know neither the beginning from which it comes forth nor the end where it ceases.
You do not know how it acts. You perceive that it acts only by its effects, for example, by its sound and the like.
Exactly so is the spiritual rebirth of man by the power and action of the Holy Spirit.
It is incomprehensible in the very act itself. It is known only by its fruits or consequences.
The regenerate person himself does not understand how rebirth was accomplished in him, although he senses that it has been accomplished.
He senses this from the actions that the Spirit produces in his life.
From the outside, this cannot be noticed except by these same actions, or fruits of the Holy Spirit.
"So if," He says, "you cannot explain either the origin or the direction of the wind, which you nevertheless perceive by hearing and touch, why do you try to comprehend the action of the Spirit of God?
"As the wind is invisible, though it makes a sound, so spiritual birth is also invisible to bodily eyes.
"But the wind is still a body, although a most subtle one, because everything subject to sense is a body.
"If, then, you are not vexed that you do not see this body, and for that reason do not reject its existence, why are you troubled when you hear of the Spirit?
"Why do you demand such exactness here, when you do not do so with respect to a body?" (Chrysostom).