Thank you for the quote.
"Thank you for the quote."
So how do you think that quote bears upon the articles presupposition that there are two punishments for sin (eternal & temporal) we must deal with before we are fully clean?
If full cleansing & forginess required indulgences (or the "punishment" indulgences supposedly pay for) then how could the verse claim that we can obtain full forgivness and full purification though simply confessing our sins?