Poor David! How do these texts help us understand blotting out the record and memory of specific sins?
Isaiah
65:17 For, behold, I create new heavens and a new earth: and the former shall not be remembered, nor come into mind.
Revelation
21:4 And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.
Hebrews
10:17 And their sins and iniquities will I remember no more.
Hebrews
10:2 and 9:9 ... because that the worshippers once purged should have had no more conscience of sins... [they are] perfect, as pertaining to the conscience...