Matthew Henry's Concise Commentary on the Bible - John 3:1-21
1-8 Nicodemus was afraid, or ashamed to be seen with Christ, therefore came in the night. When religion is out of fashion, there are many Nicodemites. But though he came by night, Jesus bid him welcome, and hereby taught us to encourage good beginnings, although weak. And though now he came by night, yet afterward he owned Christ publicly. He did not talk with Christ about state affairs, though he was a ruler, but about the concerns of his own soul and its salvation, and went at once to them.... read more
George Haydock's Catholic Bible Commentary - John 3:18
Is not judged. He that believeth, viz. by a faith working through charity, is not judged; that is, is not condemned; but the obstinate unbeliever is judged; that is, condemned already, by retrenching himself from the society of Christ and his Church. (Challoner) read more