Because their deeds were evil.
Why do men prefer ignorant rebellion in folly? They are committed to their sin! They do not become evil by rejecting the light of Christ, for they are already so. The light of the gospel includes exposing sin by preaching against it (
John 7:7).
John 3:20~ "For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved."
For every one that doeth evil.
He is evil long before hating the light – man hates the light because he is evil. By nature man is committed to doing evil in every part of his life (
Rom 3:9-18). Therefore, his reaction to the light of Christ’s gospel is evidence of reprobation.
Hateth the light.
Note the enmity! There is enmity between the flesh and spirit (
Romans 8:7-8). Note the enmity! There is enmity between the flesh and Spirit (
Galatians 5:17). It is important to remember depravity is not of intelligence but rather of motive.
Neither cometh to the light.
Of course, if man hates the light of Christ and His gospel, he will not come to it. There are two faults here – the fault of perverse hatred and the resulting actions. Contrast regeneration ~ both to will and to do of His good pleasure (
Phil 2:13).
Lest his deeds should be reproved.
All men are fools and scorners by nature – they do not want to be corrected. Every man can prove their justification here? How much do we love to be corrected?
John 3:21~ "But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God."
But he that doeth truth.
However, there is another kind of man – one living by truth rather than by evil. Thanks be to God for all the inspired disjunctives in the Bible like this but! Truth here is to be understood by godly and righteous choices and actions.
A big question here is whether doing truth is a choice and action of man or God. Can a man in the flesh choose to change his life and commit his life to truth? Jesus already taught Nicodemus that
before regeneration he cannot see truth. All that man has within him is lies and the poison of asps (
Romans 3:9-19).
Only the born again seed and nature of the new man can and will choose truth. Those receiving Jesus showed themselves very different – by God (
Jn 1:11-13)!
Cometh to the light.
This is to believe on Jesus Christ and to repudiate all sins displeasing to Him.
In this context, he comes to Christ not to get truth but because he is of the truth!
That his deeds may be made manifest.
Rather than avoiding any correction of his God-hating life, he wants exposure! Whether conscious or unconscious, it does not matter, he reveals a new nature. True children of God have deeds of truth that assure their hearts (
I Jn 3:18-19).
That they are wrought in God.
It is worked by God’s grace and power, for that is what all scripture teaches. One cannot believe until they are God’s workmanship in regeneration. You can only work out what God already worked in (
Phil 2:12-13). The godly actions of the children of God are to God, for God, by God, etc.
Jim, I call these few scriptures the
forgotten scriptures of John 3, but a world of jewels found therein.