In whom we have redemption through His blood, the forgiveness of sins, according to the riches of His grace… – Ephesians 1:7

Read the chapter (Ephesians 1), and carefully note how the apostle goes to the back of everything and commences with those primeval blessings which were ours before time began. He dwells on the divine love of old, and the predestination which came out of it; and all that blessed purpose of making us holy and without blame before Him in love, which was comprehended in the covenant of grace. It does us good to get back to these antiquities-to these eternal things…”In whom we have redemption.” Whether others have it or not, we have “redemption through His blood, the forgiveness of sins.” We do not hope for it, but we have it. We do not merely think so, but we know that we have it. We are redeemed; we are free from bondage; we are forgiven and are no longer under condemnation. The apostle has mentioned it, if you notice, amongst the great things of God-His electing love, His adoption of us by Jesus Christ, His acceptance of us in the Beloved. Side by side with these colossal mercies He puts this one, that we have “the forgiveness of sins, according to the riches of His grace.” This is a blessing of no mean stature, for it marches with the giants of election and adoption…It would not be possible for God to forgive, and yet to punish. That would be a forgiveness quite unworthy of God. It would, indeed, be no forgiveness at all. We are certain that the everlasting punishment of sin declared in Scripture, will never happen to the man who is forgiven. When transgression is removed the soul stands clear at the bar of God, and there can be no further penalty. “I absolve thee,” says the great Judge; and that carries with it weight, so that a man that is forgiven is cleared of the punishment which he must otherwise have borne. “Blessed is he whose transgression is forgiven, whose sin is covered.” “There is therefore now no condemnation to them which are in Christ Jesus.” ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/2207.cfm