John Gill Commentary John 3:20

"For every one that doeth evil hateth the light, and cometh not to the light, lest his works should be reproved." — John 3:20 (ASV)

For every one that does evil, hates the light
Every man, the series of whose life and conversation is evil, hates Christ and his Gospel, cause they make manifest his evil deeds, convict him of them, and rebuke him for them:

neither comes to the light ;
to hear Christ preach, or preached; to attend on the Gospel ministration and means of grace:

so that his deeds are not reproved ;
or discovered, and made manifest, and he be brought to shame, and laid under blame, and advised to part with them, which he cares not to do; see (Ephesians 5:11–13) .