John 3:9,10 - Joseph Benson’s Commentary on the Old and New Testaments

Nicodemus answered, How can these things be? Christ's explication of the doctrine of regeneration, and its necessity, made it no clearer to him. The corruption of nature, which renders it necessary, and the operation of the Spirit, which renders it practicable, were as great mysteries to him as the thing itself. And though he had acknowledged Christ to be a divine teacher, he was unwilling to receive his doctrine when it did not agree with his preconceived notions. Thus the things of the Spirit of God are foolishness to the natural man, and he is not only estranged from them, but prejudiced against them. Jesus said, Art thou a master Ο διδασκαλος, a teacher, or rather, the teacher, of Israel, as Dr. Campbell renders the expression; observing, “The article here is remarkable; the more so, because there does not appear to be a single Greek copy which omits it. As a member of the sanhedrim, Nicodemus had a superintendency in what concerned religious instruction, and might on that account have been called a teacher of Israel; but it is probably in order to intimate to us his distinguished fame for abilities in this respect, that he is styled by way of eminence, the teacher.” And knowest thou not these things When so much is everywhere said in the Scriptures of God's circumcising men's hearts, creating in them clean hearts, renewing in them right spirits, and of the quickening and purifying operations of his Spirit on their souls? See Deuteronomy 30:6; Psalms 51:10; Jeremiah 4:4; and Jeremiah 31:33-34; Ezekiel 36:25-27. “Could it be proved.” says Dr. Doddridge, “that the Jewish rabbis, so early as Christ's time, called a baptized person one born again, or born of water, that would strongly illustrate the passage before us.” But though several learned commentators give the words this turn, the fact, he thinks, is not proved. “However, it is strange to me,” says he, “that any should doubt whether proselytes were admitted into the Jewish church by baptism, that is, by washing, when it is plain from express passages in the Jewish law that no Jew who had lived like a Gentile for one single day could be restored to the communion of their church without it. Compare Numbers 19:19-20; and many other precepts relating to ceremonial pollutions, by which the Jews were rendered incapable of appearing before God in the tabernacle or temple till they were washed, either by bathing or sprinkling.” It is probable, however, that the reproof conveyed in this verse does not so much relate to the forementioned figures of speech, supposed to be in use among the rabbis, representing the baptism of proselytes as a new birth; as to Nicodemus's being so entirely unacquainted with the doctrine of the Old Testament, respecting the necessity of a change of heart being experienced by all who would be the true people and spiritual worshippers of God; and respecting that effusion of the Spirit which the prophets had so clearly foretold would take place under the Messiah.