Who can say, I have made my heart clean, I am pure from my sin?

Who is able to say, I have made my heart clean, I am free from my sin?

Τις δυναται να ειπη, Εκαθαρισα την καρδιαν μου, ειμαι καθαρος απο των αμαρτιων μου;

Who can say, I have made my heart clean, I am pure from my sin?