He that believeth on Him is not condemned – John 3:18

You are aware that in our courts of law, a verdict of “not guilty,” amounts to an acquittal, and the prisoner is immediately discharged. So is it in the language of the gospel; a sentence of “not condemned,” implies the justification of the sinner. It means that the believer in Christ receives now a present justification. Faith does not produce its fruits by-and-by, but now. So far as justification is the result of faith, it is given to the soul in the moment when it closes with Christ, and accepts Him as its all in all. Are they who stand before the throne of God justified to-night?-so are we, as truly and as clearly justified as they who walk in white and sing His praises above. The thief upon the cross was justified the moment that he turned the eye of faith to Jesus, who was just then, hanging by his side: and Paul, the aged, after years of service, was not more justified than was the thief with no service at all. We are today accepted in the Beloved, today absolved from sin, today innocent in the sight of God. Oh, ravishing, soul-transporting thought! There are some clusters of this vine which we shall not be able to gather till we go to heaven; but this is one of the first ripe clusters and may be plucked and eaten here. This is not as the corn of the land, which we can never eat till we cross the Jordan; but this is part of the manna in the wilderness, and part too of our daily raiment, with which God supplies us in our journeying to and fro. We are now-even now pardoned; even now are our sins put away; even now we stand in the sight of God as though we had never been guilty; innocent as father Adam when he stood in integrity, ere he had eaten of the fruit of the forbidden tree; pure as though we had never received the taint of depravity in our veins. “There is, therefore, now no condemnation to them which are in Christ Jesus.” There is not a sin in the Book of God, even now, against one of His people. There is nothing laid to their charge. There is neither speck, nor spot, nor wrinkle, nor any such thing remaining upon any one believer in the matter of justification in the sight of the Judge of all the earth.~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0362.cfm