John the Apostle
John 3:14BSB·traditional attribution

Just as Moses lifted up the snake in the wilderness, so the Son of Man must be lifted up,

John Calvin Reformed @genevareformer

14. And as Moses lifted up the serpent. He explains more clearly why he said that it is he alone to whom heaven is opened; namely, that he brings to heaven all who are only willing to follow him as their guide; for he testifies that he will be openly and publicly manifested to all, that he may diffuse his power over men of every class.

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

That whosoever believeth in him,.... Whether Jew or Gentile, a greater, or a lesser sinner, and of whatsoever state and condition, age or sex; and though ever so weak a believer, provided his faith, is of the right kind: not an historical or temporary one, a mere assent to the truth of things respecting his person, office, and work; but such a faith, by which...