Confessed Sins are Forgiven
Verily I say unto you, All sins shall be forgiven unto the sons of men, ... but he that shall blaspheme against the Holy Ghost hath never forgiveness. Mark 3:28, 29.
What constitutes the sin against the Holy Ghost?—It is willfully attributing to Satan the work of the Holy Spirit. For example, suppose that one is a witness of the special work of the Spirit of God. He has convincing evidence that the work is in harmony with the Scriptures, and the Spirit witnesses with his spirit that it is of God. Afterward, however he falls under temptation; pride, self-sufficiency, or some other evil trait, controls him; and rejecting all the evidence of its divine character, he declares that that which he had before acknowledged to be the power of the Holy Spirit was the power of Satan. It is through the medium of His Spirit that God works upon the human heart; and when men willfully reject the Spirit, and declare it to be from Satan, they cut off the channel by which God can communicate with them. By denying the evidence which God has been pleased to give them, they shut out the light which had been shining in their hearts, and as the result they are left in darkness.—Testimonies for the Church 5:634.
Whatever the sin, if the soul repents and believes, the guilt is washed away by the blood of Christ; but he who rejects the work of the Holy Spirit is placing himself where repentance and faith cannot come to him. It is by the Spirit that God works upon the heart; when men wilfully reject the Spirit, and declare it to be from Satan, they cut off the channel by which God can communicate with them. When the Spirit is finally rejected, there is no more that God can do for the soul.—The Desire of Ages, 322.
From With God at Dawn - Page 228
With God at Dawn