Joh 3:18 Whoever believes in him is not condemned, but whoever does not believe is condemned already, because he has not believed in the name of the only Son of God. And this is the judgment: the light has come into the world, and people loved the darkness rather than the light because their works were evil. For everyone who does wicked things hates the light and does not come to the light, lest his works should be exposed.
It is a fact that the gospel of Jesus Christ will increase some men’s damnation at the last great day. Again, I startle at myself when I have said it; for it seems too horrible a thought for us to venture to utter—that the gospel of Christ will make hell hotter to some men than it otherwise would have been. Men would all have sunk to hell had it not been for the gospel. The grace of God reclaims “a multitude that no man can number;” it secures a countless army who “shall be saved in the Lord with an everlasting salvation;” but, at the same time, it does to those who reject it, make their damnation even more dreadful. And let me tell you why.
It will increase your condemnation, I tell you all unless you find Jesus Christ to be your Saviour; for to have had the light and not to walk by it, shall be the condemnation, the very essence of it, This shall be the virus of the guilt—that the “light came into the world, and the darkness comprehended it not;” for “men love darkness rather than light because their deeds are evil.”
He who hears the truth, but he perverts it; he takes what is intended by God for his good, and what does he do, he commits suicide therewith. That knife which was given him to open the secrets of the gospel he drives into his own heart. That which is the purest of all truth and the highest of all morality, he turns into the gratification and indulgence of his sin and makes it a scaffold to aid in building up his eternal house in hell.
It must increase your condemnation if you oppose the gospel of Jesus Christ. If God’s offer of grace, mercy, and love has been rejected, how great must be his sin? Who shall tell the great guilt incurred by such people? Oh! who shall picture out, or even faintly sketch, the doom of those who have rejected Jesus Christ and in their heart have cried out, “I am sufficient in myself, I am good enough on my own, I am self-worthy.” Who shall tell what place in hell shall be hot enough for the man who denies and rejects God? (Spurgeon)