Through the Blood of the Lamb

To be sure, all sins have been remitted and covered, but they have not yet been completely cleansed away. Not only do the dregs of lust, pride, hatred, wrath, and other desires cling to us, but also inner evils and hidden stains, doubts about God, unbelief, impatience, and murmuring, which do not come out into the open until the conscience is troubled by the Law and by the terrors of sin. Although we pay no attention to these things and do not sob because of such a disgraceful fall, yet God sees them. Therefore He tries to purge our impure nature. This is what He thinks: ‘You have been enlightened and baptized; but you still stink, and your flesh is full of many great vices. Therefore I must cleanse it, for that which is unclean and polluted shall not enter the kingdom of heaven’ (cf. Rev. 21:27)

Martin Luther (AE 7:229)

As taken from: Engelbrecht, E. A. (2009). The Lutheran Study Bible (p. 2235). St. Louis, MO: Concordia Publishing House.