What does John 3:8 mean?
John 3: 3-8 (NASB)
Nicodemus finds it difficult to understand spiritual truths.
3 "Jesus answered and said to him, “Truly, truly, I say to you, unless
one is born [b]again he cannot see the kingdom of God.”4 Nicodemus
*said to Him, “How can a man be born when he is old? He cannot enter a second time into his mother’s womb and be born, can he?” 5 Jesus
answered, “Truly, truly, I say to you, unless one is born of water and
the Spirit he cannot enter into the kingdom of God."
To make things clearer to Nicodemus, Jesus uses the wind as an example Vs 8
6 "That which is born of the flesh is flesh and that which is born of
the Spirit is spirit. 7 Do not be amazed that I said to you, ‘You must
be born [c]again.’ 8 The wind blows where it wishes and you hear the
sound of it, but do not know where it comes from and where it is
going; so is everyone who is born of the Spirit."
The wind is real, Nicodemus could feel, notice its effects, but could not know its origin or where it is going. Likewise, those lacking spiritual insight will find it difficult to understand how God by means of his spirit could cause a person to be born again, let alone know and understand the destiny of such one would be.
With the help of the Bible writers which were inspired by the spirit of God, to write to us his message in the Bible, one can comprehend such matters:
John 16:13 (NASB)
13 "But when He, the Spirit of truth, comes, He will guide you into
all the truth; for He will not speak on His own initiative, but
whatever He hears, He will speak, and He will disclose to you what is