John Chrysostom

It is as if we saw someone about to fall down a cliff and stopped him with the words, "Fellow, where are you heading? A cliff lies in front of you," just so does this author demand that the evil people reverse their course. Likewise, too, unless you were quick to restrain a galloping horse, it would soon be lost. Likewise, too, when as frequently happens the poison of some serpent spreads through the whole of the body, physicians very promptly stop its spreading further, canceling its harmful effect. In exactly the same way do we behave, very promptly checking the evil in us lest it develop further and aggravate the ailment. The wounds of sin, you see, get worse when neglected, and the effects of disease and ill health do not stop short at wounds but even bring about undying death; similarly, if we dealt with small beginnings at the outset, greater consequences would not develop.… Accordingly, let us not be indifferent to the slightest sins but suppress them with great severity.