John Dummelow's Commentary on the Bible - John 3:1-36
The New Birth. John’s Testimony to Jesus1-15. Conversation with Nicodemus. The ministry at Jerusalem, though disappointing, was not fruitless. Christ’s miracles and teaching had made an impression, not only on Nicodemus, but as Nicodemus himself says (John 3:2, cp. John 12:42), on other members of the Sanhedrin. This interview took place by night, on account of the timidity of Nicodemus (cp. John 7:50), and probably in St. John’s house at Jerusalem, the evangelist himself being present.... read more
Expository Notes of Dr. Thomas Constable - John 3:5
Again Jesus prefaced a further affirmation with the statement that guaranteed its certainty. Entering the kingdom and seeing the kingdom (John 3:3) seem to be synonymous terms, though the former may be a bit clearer. There are several views of the meaning of being born of water and the Spirit. The verse and its context contribute much to our understanding of this difficult phrase.Whatever its meaning, "born of water and the Spirit" must equal being born "again" or "from above" (John 3:3) since... read more