Repentance

"Repentance effaces every sin when there is no delay after the fall of the soul - when the disease is not allowed to go on for a long time. For then evil will not have power to leave its mark in us, when it is drawn up at the moment it is set down, like a plant newly planted."
~St. Methodius of Olympus

"Repentance is an effect of faith. For unless a man believes that the object of his addiction is sin, he will not abandon it; and if he does not believe punishment is impending over the transgressor, and salvation to be the portion of him who lives according to the commandments, he will not reform."
~St. Clement

"God has promised forgiveness to your repentance, but He has not promised tomorrow to your procrastination."
~St. Augustine