John Gills Exposition of the Bible Commentary - John 3:12
If I have told you earthly things ,.... Not that the doctrines he delivered were earthly ones; for he was not of the earth, but from heaven, and above all, and so spake not of the earth, but of heaven, John 3:31 ; and this doctrine of regeneration was an heavenly doctrine; and the thing itself required supernatural power, and grace from above: but either they were the more easy doctrines of the Gospel; or were delivered in a plain and easy style, and illustrated by similes taken from... read more
William Barclay's Daily Study Bible - John 3:7-13
3:7-13 Do not be surprised that I said to you: "You must be reborn from above. The wind blows where it will, and you hear the sound of it, but you do not know whence it comes and whither it goes. So is every one that is born of the Spirit." Nicodemus answered: "How can these things happen?" Jesus answered: "Are you the man whom everyone regards as the teacher of Israel, and you do not understand these things? This is the truth I tell you--we speak what we know, and we bear witness to what we... read more