Jesus answered,
Verily, verily, I say unto you, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.
All Commentaries on John 3:5 Go To John 3
Cornelius a Lapide
AD 1637
Jesus answered, &c. Calvin, in order to detract from the effect of justification by baptism, and therefore from the necessity of baptism (for he maintains that the children of believers are justified in the womb simply because they are the children of believers), denies that baptism is here spoken of. He says that by water is to be understood, but the Holy Ghost, who, through faith, cleanses like water those who believe in Christ. He explains as follows, "unless any one be born again of water, and (that Isaiah , of) the Holy Ghost." Thus he says it is similarly spoken (S. Matthew 3:11), He shall baptize you with the Holy Ghost and with fire, i.e, with the Holy Spirit, who, like fire, shall inflame you with the love of God. But all this is absurd and perverse, and condemned by the Church as heretical.
For, in the first place, why does Christ here make mention of water, if not men, but only fishes, are born again of water? Why did He not say briefly and simply to Nicodemus, who was ignorant of Christian doctrines (whom He here catechises and instructs like a child), except any one be born again of the Holy Ghost?
2. Because in a similar way S. Paul, alluding to this conversation, ( Titus 3:5), calls baptism the laver of regeneration. There in this spiritual birth we are born again of water, and are made sons of God, who before were children of the devil and wrath ( Ephesians 2:3).
3. If it be lawful with Calvin to wrest this passage, then we may do the same with every other passage, and so pervert the whole of Scripture. No commandment will survive, not even the institution of baptism itself.
4. Calvin and his followers cannot possibly prove against the Anabaptists that infants, who are devoid of the exercise of reason and faith, ought to be baptized, from any other passage of Holy Scripture but this. Therefore, since they do not allow of tradition, they must needs prove infant baptism from this passage, unless they are willing to confess themselves vanquished by the Anabaptists.
5. All the Fathers and orthodox interpreters explain the passage in the same way as the Council of Trent (Sess7 , Can2). Nor are the words in S. Matthew , "He shall baptize you with the Holy Ghost and with fire," any contradiction. For there real fire is to be understood, as here true water. For there the day of Pentecost was referred to, when the Holy Ghost came down upon the apostles in the likeness of tongues of fire.