Sins (past) are forgiven (covered, remitted), not yet blotted out. That takes place at the end of the Day of Atonement.
Rom_3:25 Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;
Psa_32:1 A Psalm of David, Maschil. Blessed is he whose transgression is forgiven, whose sin is covered.
Psa_85:2 Thou hast forgiven the iniquity of thy people, thou hast covered all their sin. Selah.
"covered" sin = "forgiven" sin
Forgiven/covered sin can be unforgiven, uncovered, unremitted during the Day of Atonement, see Matthew 18 to begin with.
Forgiven sin does not equal blotted out sin. Many scriptures on this.