There is not a sin that any soul has committed, that is not known to God. Yet the Psalmist uttered the following inspired prayer: "Remember not the sins of my youth, nor my transgressions; according to your mercy remember me, for your goodness' sake, O Lord." (Psalm 25:7)
It is the Spirit that teaches us how to pray, because He knows the human heart, and also the mind of God, and "He makes intercession for us according to the will of God." (Romans 8:27)
Therefore we may know that it is the will of God to forget our sins, and we may ask it in full assurance. God says of those who hearken to His voice, and yield to His Spirit: "Their sins and their iniquities will I remember no more." (Hebrews 8:12)
What a blessed assurance! The great God, who knows all our sins as even we ourselves cannot know them, receives us gladly, and treats us as though we had never sinned, because He forgets our sins, and sees in us only His own righteousness. Thus we can associate with Him without any fear or restraint.
He does not despise us, nor abash us with reproachful pity. He does not shrink from us, as so fearful that we may defile Him, but receives us into His bosom. Happy are they who know the Lord indeed; and happy are the repentant sinners who see only Christ in His professed followers.--Present Truth, March 22, 1894--Psalm 25:7.