For everyone that does evil hates the light, neither comes to the light, lest his deeds should be exposed.
All Commentaries on John 3:20 Go To John 3
Cyril of Alexandria
AD 444
Profitably doth He go over what has been said, and convicts indolence unto things helpful of proceeding from love of evil, and of having its root in unwillingness to learn those things whereby one may become wise and good. For the doer of evil, says He, flees from and refuses the being in the Divine Light: not hiding from shame on account of evil (for so he would have been saved) but desiring to remain in ignorance of what is becoming, lest transgressing he should be smitten, falling upon the now keener convictions of his own conscience, and by means of at length clearly knowing what is good, should pay a more woeful account to the Judge, if he should not do what was pleasing to God. But he that doeth truth (that is, the lover and doer of the works of the Truth) cometh to the light, that his deeds may be made manifest that they are wrought in God. For he doth not reject the illumination in the Spirit, by It specially led to be able to understand in all calm collectedness, whether he hath transgressed the Divine commandment, and whether he hath wrought all things according to the Law of God.
It is then a plain proof of an unbridled tendency to evil, and unrestrained pleasure in what is worse, not to wish to learn that whereby one may avail to attain unto what is better: again of desire for the best, to thirst for illumination, and to make His Law a rule so to say and index unto a conversation pleasing to God. And the Divine Psalmist knowing that this was so, sings, The Law of the Lord is perfect converting the soul: the testimony of the Lord is sure, making wise the simple. The statutes of the Lord are right, rejoicing the heart: the commandment of the Lord is pure, enlightening the eyes.
