John the Apostle
John 3:7ESV·traditional attribution

Do not marvel that I said to you, ‘You must be born again.’

John Calvin Reformed @genevareformer

7. Wonder not. This passage has been tortured by commentators in various ways. Some think that Christ reproves the gross ignorance of Nicodemus and other persons of the same class, by saying that it is not wonderful, if they do not comprehend that heavenly mystery of regeneration, since even in the order of nature they do not perceive the reason of those things which fall...

Matthew Henry Presbyterian @wholebiblehenry

We found, in the close of the foregoing chapter, that few were brought to Christ at Jerusalem; yet here was one, a considerable one. It is worth while to go a great way for the salvation though but of one soul. Observe, I. Who this Nicodemus was. Not many mighty and noble are called; yet some are, and here was one.

Commenting on John 3:1-21

John Gill Reformed Baptist @doctorgill

The wind bloweth where it listeth,.... For ought any mortal can say, or do to the contrary: and so the Spirit of God is a free agent in regeneration; he works how, and where, and when he pleases; he acts freely in the first operation of his grace on the heart, and in all after influences of it; as well as in the donation of...