God Bless YOU!!! for this blessing in your spiritual life learning.
In this chapter, John talks about Nicodemus who came to seek counsel from Jesus at night, he didn’t want anyone to know that he was talking to Jesus. Nicodemus asked how can a man be born when he is old? can he enter the second time into his mothers womb, and be born?
3:5 “Jesus answered except man be born of water and of the spirit, he cannot see the kingdom of God.”
3:9 Nicodemus said how can these things be; he did not understand what Jesus was talking about, however, Jesus showed Nicodemus is not what he was saying he did not understand, Nicodemus did not believe in what Jesus was saying.
3:12 “if I have told you earthly things, and ye believed not, how shall ye believe , if I tell you of heavenly things?
This is a turning point in all our lives. Be born again and GOD will handle all the doubt you have. Jesus is the light, he is the life of the world. John 8:12 (Light of Life).