Isaiah 1:18

Come now and let us reason together, saith the Lord, the case being brought to trial before His tribunal, the children of Israel standing before Him as condemned culprits. Though your sins be as scarlet, blood-red with guilt, they shall be white as snow; though they be red like crimson, the color apparently fast and fixed beyond the possibility of fading, they shall be as wool. Such is the remarkable sentence of the Lord. His people, though laden with guilt, are not condemned to everlasting damnation, but God gives and imputes to them perfect righteousness. Here the meaning of justification becomes clear, for God declares the ungodly, the guilty, to be innocent, clean, holy, and righteous in His sight. Cf Romans 4:5. And this righteousness is obtained and transmitted through the redemption gained by the blood of Christ. The sentence of God is passed regardless of the attitude of man; it is spoken for His own sake, by virtue of the perfect righteousness and the complete atonement of Jesus Christ. But the sentence of God is now proclaimed to sinners in order that they may accept and believe His offer of grace and salvation.