Now if in worldly matters, amusements are attended with such dissatisfaction, while disagreeable things are so beneficial, much more does this hold in things spiritual. Why is it that no one quarrels with the laws, but on the contrary all account that matter a common benefit? For indeed not strangers from some other quarter, nor enemies of those for whom the laws are made, came and made these orders, but the citizens themselves, their patrons, their benefactors: and this very thing, the making of laws, is a token of beneficence and good-will.
And yet the laws are full of punishment and restraint, and there is no such thing as law without penalty and coercion. Then is it not unreasonable, that while the expositors of those laws are called deliverers, benefactors, and patrons, we are considered troublesome and vexatious if we speak of the laws of God? When we discourse about hell, then we bring forward those laws: just as in the affairs of the world, people urge the laws of murder, highway robbery, and the like, so do we the penal laws: laws, which not man enacted, but the Only-Begotten Son of God Himself.
Let him that has no mercy, He says, be punished; for such is the import of the parable. Let him that remembers injuries, pay the last penalty. Let him that is angry without cause, be cast into the fire. Let him that reviles, receive his due in hell. If you think these laws which you hear strange, be not amazed. For if Christ was not intended to make new laws, why did He come? Those other laws are manifest to us; we know that the murderer and adulterer ought to be punished. If then we were meant only to be told the same things over again, where was the need of a heavenly Teacher?
Therefore He does not say, Let the adulterer be punished, but, whoso looks on with unchaste eyes. And where, and when, the man will receive punishment, He there tells us. And not in fine public monuments, nor yet somewhere out of sight, did He deposit His laws; not pillars of brass did He raise up, and engrave letters thereon, but twelve souls raised He up for us, the souls of the Apostles, and in their minds has He by the Spirit inscribed this writing. This cite we to you. If this was authorized to Jews, that none might take refuge in the plea of ignorance, much more is it to us.
But should any say, “I do not hear, therefore have no guilt,” on this very score he is most liable to punishment. For, were there no teacher, it would be possible to take refuge in this plea; but if there be, it is no longer possible. Thus see how, speaking of Jews, the Lord deprives them of all excuse; “If I had not come and spoken unto them, they had not had sin:”: and Paul again, “But I say, have they not heard? Nay, but into all the earth went forth their sound.” For then there is excuse, when there is none to tell the man; but when the watchman sits there, having this as the business of his life, there is excuse no longer.
Nay, rather, it was the will of Christ, not that we should look only upon these written pillars, but that we should ourselves be such. But since we have made ourselves unworthy of the writing, at least let us look to those. For just as the pillars threaten others, but are not themselves obnoxious to punishment, nor yet the laws, even so the blessed Apostles. And observe; not in one place only stands this pillar, but its writing is carried round about in all the world. Whether you go among the Indians, you shall hear this: whether into Spain, or to the very ends of the earth, there is none without the hearing, except it be of his own neglect.
Then be not offended, but give heed to the things spoken, that you may be able to lay hold upon the works of virtue, and attain unto the eternal blessings in Christ Jesus our Lord, with Whom to the Father and Holy Ghost together be glory, power, honor, now and ever, world without end. Amen.
Source: Homilies on Acts (New Advent)