Jesus answered him, "Most assuredly, I tell you, unless one is born anew,{The word translated "anew" here and in John 3:7 (anothen) also means "again" and "from above".} he can't see the Kingdom of God."
(1.) As pertinently answered to Nicodemus's address. Jesus answered, John 3:3. This answer was wither, [1.] A rebuke of what he saw defective in the address of Nicodemus. It was not enough for him to admire Christ's miracles, and acknowledge his mission, but he must be born again. It is plain that he expected the kingdom of heaven, the kingdom of the Messiah now shortly to appear. He is betimes aware of the dawning of that day; and, according to the common notion of the Jews, he expects it to appear in external pomp and power. He doubts not but this Jesus, who works these miracles, is either the Messiah or his prophet, and therefore makes his court to him, compliments him, and so hopes to secure a share to himself of the advantages of that kingdom. But Christ tells him that he can have no benefit by that change of the state, unless there be a change of the spirit, of the principles and dispositions, equivalent to a new birth. Nicodemus came by night: "But this will not do," saith Christ. His religion must be owned before men; so Dr. Hammond. Or, [2.] A reply to what he saw designed in his address. When Nicodemus owned Christ a teacher come from God, one entrusted with an extraordinary revelation from heaven, he plainly intimated a desire to know what this revelation was and a readiness to receive it; and Christ declares it.