Those who believe in him are not condemned; but those who do not believe are condemned already, because they have not believed in the name of the only Son of God. And this is the judgement, that the light has come into the world, and people loved darkness rather than light because their deeds were evil. For all who do evil hate the light and do not come to the light, so that their deeds may not be exposed. But those who do what is true come to the light, so that it may be clearly seen that their deeds have been done in God.'
Test me on transposing the word Truth for the Christ in every passage and you will see that Word is the one message from Jesus that sums the NT and is the "key" to every passage:
Those who believe in "him," (The Truth), are not condemned (ultimately to an extinct species); but those who do not believe are condemned already, because they have not believed in (The Truth), the name of the only Son of God, (the Force behind the ever unfolding next frame of Reality).
And this is the judgement, that the light has come into the world, (The Truth), and people loved darkness rather than light because their deeds were evil, (as was exemplified by the Truth found personified in Rev Martin Luther King, 2000 years later, when White southern Americans insisted that separate was Equal).
For all who do evil hate the light (of The Truth), and do not come to the light (of The Truth), so that their deeds may not be exposed.
But those who do what is true come to the light (of The Truth), so that it may be clearly seen that their deeds have been done in God, (the future unfolding which responds to their actions).'