8 But that we may convict them in another way also, let us bring forward all their allegations. What then do they affirm? They assert that the God who made the world, who “makes His sun to rise on the evil and on the good, who sends the rain on the just and on the unjust,” is in some sense an evil being. But the more moderate (forsooth) among them, though declining this, yet while they affirm Him to be just, they deprive Him of being good. And some other one, who is not, nor made any of the things that are, they assign for a Father to Christ. And they say that he, who is not good, abides in his own, and preserves what are his own; but that He, that is good, seeks what are another's, and desires of a sudden to become a Saviour to them whose Creator He was not. Do you see the children of the devil, how they speak out of the fountain of their father, alienating the work of creation from God: while John cries out, “He came unto His own,” and, “The world was made by Him?”
In the next place, they criticise the law in the old covenant, which bids put out “an eye for an eye,” and “a tooth for a tooth;” and straightway they insult and say, “Why, how can He be good who speaks so?”
What then do we say in answer to this? That it is the highest kind of philanthropy. For He made this law, not that we might strike out one another's eyes, but that fear of suffering by others might restrain us from doing any such thing to them. As therefore He threatened the Ninevites with overthrow, not that He might destroy them, (for had that been His will, He ought to have been silent), but that He might by fear make them better, and so quiet His wrath: so also has He appointed a punishment for those who wantonly assail the eyes of others, that if good principle dispose them not to refrain from such cruelty, fear may restrain them from injuring their neighbors' sight.
And if this be cruelty, it is cruelty also for the murderer to be restrained, and the adulterer checked. But these are the sayings of senseless men, and of those that are mad to the extreme of madness. For I, so far from saying that this comes of cruelty, should say, that the contrary to this would be unlawful, according to men's reckoning. And whereas, you say, Because He commanded to pluck out “an eye for an eye,” therefore He is cruel; I say, that if He had not given this commandment, then He would have seemed, in the judgment of most men, to be that which you say He is.
For let us suppose that this law had been altogether done away, and that no one feared the punishment ensuing thereupon, but that license had been given to all the wicked to follow their own disposition in all security, to adulterers, and to murderers, to perjured persons, and to parricides; would not all things have been turned upside down? Would not cities, market-places, and houses, sea and land, and the whole world, have been filled with unnumbered pollutions and murders? Every one sees it. For if, when there are laws, and fear, and threatening, our evil dispositions are hardly checked; were even this security taken away, what is there to prevent men's choosing vice? And what degree of mischief would not then come revelling upon the whole of human life?
The rather, since cruelty lies not only in allowing the bad to do what they will, but in another thing too quite as much; to overlook, and leave uncared for, him who has done no wrong, but who is without cause or reason suffering ill. For tell me; were any one to gather together wicked men from all quarters, and arm them with swords, and bid them go about the whole city, and massacre all that came in their way, could there be anything more like a wild beast than he? And what if some other should bind, and confine with the utmost strictness those whom that man had armed, and should snatch from those lawless hands them, who were on the point of being butchered; could anything be greater humanity than this?
Now then, I bid you transfer these examples to the law likewise; for He that commands to pluck out “an eye for an eye,” has laid the fear as a kind of strong chain upon the souls of the bad, and so resembles him, who detains those assassins in prison; whereas he who appoints no punishment for them, does all but arm them by such security, and acts the part of that other, who was putting the swords in their hands, and letting them loose over the whole city.
Do you see not, how the commandments, so far from coming of cruelty, come rather of abounding mercy? And if on account of these you call the Lawgiver grievous, and hard to bear with; tell me which sort of command is the more toilsome and grievous, “Do no murder,” or, “Be not even angry”? Which is more in extreme, he who exacts a penalty for murder, or for mere anger? He who subjects the adulterer to vengeance after the fact, or he who enjoins a penalty even for the very desire, and that penalty everlasting? See ye not how their reasoning comes round to the very contrary? How the God of the old covenant, whom they call cruel, will be found mild and meek: and He of the new, whom they acknowledged to be good, will be hard and grievous, according to their madness? Whereas we say, that there is but one and the same Legislator of either covenant, who dispensed all meetly, and adapted to the difference of the times the difference between the two systems of law. Therefore neither are the first commandments cruel, nor the second hard and grievous, but all of one and the same providential care.
For that He Himself gave the old covenant also, hear the affirmation of the prophet, or rather (so we must speak), of Him who is both the one and the other: “I will make a covenant with you, not according to the covenant which I made with your fathers.”
But if he receive not this, who is diseased with the Manichæan doctrines, let him hear Paul saying the very same in another place, “For Abraham had two sons, one by the bondmaid, and another by the freewoman; and these are two covenants.” As therefore in that case the wives are different, the husband the same; so here too the covenants are two, the Lawgiver one.
And to prove to you that it was of one and the same mildness; in the one He says, “An eye for an eye,” but in this other,
“If one smite you on your right cheek, turn to him the other also.”
For as in that case He checks him that does the wrong with the fear of this suffering, even so also in this. “How so,” it may be said, “when He bids turn to him the other cheek also?” Nay, what of that? Since not to take away his fear did He enjoin this, but as charging yourself to allow him to take his fill entirely. Neither did He say, that the other continues unpunished, but, “do not thou punish;” at once both enhancing the fear of him that smites, if he persist, and comforting him who is smitten.
Source: Homilies on the Gospel of St. Matthew (New Advent)