Moral. And therefore the blessed Paul also, in leading us away from sin, leads us on to virtue. For where, tell me, is the advantage of all the thorns being cut out, if the good seeds be not sown? For our labor, remaining unfinished, will come round and end in the same mischief. And therefore Paul also, in his deep and affectionate anxiety for us, does not let his admonitions stop at eradicating and destroying evil tempers, but urges us at once to evidence the implanting of good ones. For having said, “Let all bitterness, and wrath, and clamor, and railing be put away from you, with all malice,” he adds, “And be ye kind one to another, tender-hearted, forgiving each other.” For all these are habits and dispositions. And our abandonment of the one thing is not sufficient to settle us in the habitual practice of the other, but there is need again of some fresh impulse, and of an effort not less than that made in our avoidance of evil dispositions, in order to our acquiring good ones. For so in the case of the body, the black man, if he gets rid of this complexion, does not straightway become white. Or rather let us not conduct our discourse with an argument from physical subjects, but draw our example from those which concern moral choice. He who is not our enemy, is not necessarily our friend; but there is an intermediate state, neither of enmity nor of friendship, which is perhaps that in which the greater part of mankind stand toward us. He that is not crying is not therefore necessarily also laughing, but there is a state between the two. And so, I say, is the case here. He that is not “bitter” is not necessarily “kind,” neither is he that is not “wrathful” necessarily “tender-hearted”; but there is need of a distinct effort, in order to acquire this excellence. And now look how the blessed Paul, according to the rules of the best husbandry, thoroughly cleans and works the land entrusted to him by the Husbandman. He has taken away the bad seeds; he now exhorts us to retain the good plants. “Be kind,” says he, for if, when the thorns are plucked up, the field remains idle, it will again bear unprofitable weeds. And therefore there is need to preoccupy its unoccupied and fallow state by the setting of good seeds and plants. He takes away “anger,” he puts in “kindness”; he takes away “bitterness,” he puts in “tender-heartedness”; he extirpates “malice” and “railing,” he plants “forgiveness” in their stead. For the expression, “forgiving one another,” is this; be disposed, he means, to forgive one another. And this forgiveness is greater than that which is shown in money-matters. For he indeed who forgives a debt of money to him that has borrowed of him, does, it is true, a noble and admirable deed, but then the kindness is confined to the body, though to himself indeed he repays a full recompense by that benefit which is spiritual and concerns the soul; whereas he who forgives trespasses will be benefiting alike his own soul, and the soul of him who receives the forgiveness. For by this way of acting, he not only renders himself, but the other also, more charitable. Because we do not so deeply touch the souls of those who have wronged us by revenging ourselves, as by pardoning them, and thus shaming them and putting them out of countenance. For by the other course we shall be doing no good, either to ourselves or to them, but shall be doing harm to both by seeking ourselves for retaliation, like the rulers of the Jews, and by kindling up the wrath that is in them; but if we return injustice with gentleness, we shall disarm all his anger, and shall be setting up in his breast a tribunal which will give a verdict in our favor, and will condemn him more severely than we ourselves could. For he will convict and will pass sentence upon himself, and will look for every pretext for repaying the share of long-suffering granted him with fuller measure, knowing that, if he repay it in equal measure, he is thus at a disadvantage, in not having himself made the beginning, but received the example from us. He will strive accordingly to exceed in measure, in order to eclipse, by the excess of his recompense, the disadvantage he himself sustains in having been second in making advances towards requital; and the disadvantage again which accrues to the other from the time, if he was the first sufferer, this he will make up by excess of kindness. For men, if they are right-minded, are not so affected by evil as by the good treatment they may receive at the hands of those whom they have injured. For it is a base sin, and it is matter of reproach and scorn for a man who is well-treated not to return it; while for a man who is ill-treated, not to go about to resent it, this has the praise and applause, and the good word of all. And therefore they are more deeply touched by this conduct than any.
So that if you have a wish to revenge yourself, revenge yourself in this manner. Return good for evil, that you may render him even your debtor, and achieve a glorious victory. Have you suffered evil? Do good; thus avenge you of your enemy. For if you shall go about to resent it, all will blame both you and him alike. Whereas if you shall endure it, it will be otherwise. You they will applaud and admire; but him they will reproach. And what greater punishment can there be to an enemy, than to behold his enemy admired and applauded by all men? What more bitter to an enemy, than to behold himself reproached by all before his enemy's face? If you shall avenge you on him, you will both be condemned perhaps yourself, and will be the sole avenger; whereas, if you shall forgive him, all will be avengers in your stead. And this will be far more severe than any evil he can suffer, that his enemy should have so many to avenge him. If you open your mouth, they will be silent; but if you are silent, not with one tongue only, but with ten thousand tongues of others, you smite him, and art the more avenged. And on you indeed, if you shall reproach him, many again will cast imputations (for they will say that your words are those of passion); but when others who have suffered no wrong from him thus overwhelm him with reproaches, then is the revenge especially clear of all suspicion. For when they who have suffered no mischief, in consequence of your excessive forbearance feel and sympathize with you, as though they had been wronged themselves, this is a vengeance clear of all suspicion. “But what then,” you will say, “if no man should take vengeance?” It cannot be that men will be such stones, as to behold such wisdom and not admire it. And though they wreak not their vengeance on him at the time; still, afterwards, when they are in the mood, they will do so, and they will continue to scoff at him and abuse him. And if no one else admire you, the man himself will most surely admire you, though he may not own it. For our judgment of what is right, even though we be come to the very depth of wickedness, remains impartial and unbiased. Why, suppose ye, did our Lord Christ say, “Whosoever smites you on the right cheek, turn to him the other also”? Is it not because the more long-suffering a man is, the more signal the benefit he confers both on himself and on the other? For this cause He charges us to “turn the other also,” to satisfy the desire of the enraged. For who is such a monster as not to be at once put to shame? The very dogs are said to feel it; for if they bark and attack a man, and he throws himself on his back and does nothing, he puts a stop to all their wrath. If they then reverence the man who is ready to suffer evil from them, much more will the race of man do so, inasmuch as they are more rational.
Source: Homilies on Ephesians (New Advent)