Therefore, I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven. – Matthew 12:31

All manner of sin and blasphemy shall be forgiven unto men. For lust, for robbery, for adultery-yea, for murder, there is forgiveness with God, that He may be feared. He is the Lord God, merciful and gracious, passing by transgression, iniquity, and sin. And this forgiveness which is possible is, according to the Scriptures, complete; that is to say, when God forgives a man his sin, He does it outright. He blots out the debt without any back reckoning. He does not put away a part of the man’s sin, and have him accountable for the rest; but in the moment in which a sin is forgiven, his iniquity is as though it had never been committed; he is received in the Father’s house and embraced with the Father’s love as if he had never erred; he is made to stand before God as accepted, and in the same condition as though he had never transgressed. Blessed be God, believer, there is no sin in God’s Book against thee. If thou hast believed, thou art forgiven- forgiven not partially, but altogether. The handwriting that was against thee is blotted out, nailed to the cross of Christ, and can never be pleaded against thee any more for ever. The pardon is complete…Once forgiven, you shall be forgiven for ever, and none of the consequences of sin shall be visited upon you. You shall be absolved unreservedly and eternally, so that when the heavens are on a blaze, and the great white throne is set up, and the last great assize is held, you may stand boldly before the judgment-seat and fear no accusation, for the forgiveness which God Himself vouchsafes He will never revoke.  ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/3418.cfm