He that believeth on Him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God. – John 3:18
If the Son of God dies for sinners, and sinners reject His blood, they have committed the most heinous offence possible. I will not venture to affirm, but I do suggest that the devils in hell are not capable of so great a stretch of criminality as is involved in the rejection of the sacrifice of Jesus Christ. Here lies the highest love. The incarnate God bleeds to death to save men, and men hate God so much that they will not even have Him as He dies to save them. They will not be reconciled to their Creator, though He stoops from His loftiness to the depths of woe in the person of His Son on their behalf. This is depravity indeed, and desperateness of rebellion. God grant you may not be guilty of it. There can be no fiercer flame of wrath than that which will break forth from love that has been trampled upon, when men have put from them eternal life, and done despite to the Lamb of God. “Oh,” says one, “would God I could believe!” “Sir, what difficulty is there in it? Is it hard to believe the truth? Darest thou belie thy God? Art thou steeling thy heart to such desperateness that thou wilt call thy God a liar?” “No; I believe Christ died for the ungodly,” says one, “but I want to know how to get the merit of that death applied to my own soul.” Thou mayest, then, for here it is-“He that believeth in Him,” that is, he that trusts in Him, “is not condemned.” Here is the gospel and the whole of it-“He that believeth and is baptized shall be saved: he that believeth not shall be damned.” By your soul’s value, by its immortality, by the hope of heaven and by the dread of hell, lay hold upon eternal life; and by the fear that this may be your last day on earth I do beseech you now, “steal away to Jesus.” There is life in a look at the crucified One; there is life at this moment for you. Look to Him now and live. Amen. ~ C.H. Spurgeon
https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1191.cfm