If you do well, shall you not be accepted? and if you do not well, sin lies at the door. And you shall be its desire, and you must rule over it.
All Commentaries on Genesis 4:7 Go To Genesis 4
John Chrysostom
AD 407
So what is the upshot? You have sinned, and sinned grievously, but I am not imposing punishment for the sin; after all, I am loving, and "I do not want the death of the sinner, rather that he be converted and live." Since, then you have sinned, be at peace, lend calm to your thinking and rid yourself of the onset of the waves crashing around your mind, settle the storm lest you add to the previous sin another more grievous one and set your mind on something beyond repair. Don't give yourself into the clutches of the wicked demon. "'You have sinned, be at peace.'" He knew right from the outset that the future attack against his brother would take place, and by these words he checks it beforehand. You see, since he was God and knew the unspoken intentions of Cain's mind, he was aware of the movements of his heart; so with this earnest exhortation and the considerateness of his words he applies the appropriate remedy to him, doing everything in his power in case this man should reject the medication and fall headlong into the abyss of fratricide. "'You have sinned, be at peace." ' Don't think, he says, even if I have turned away from your offering owing to your incorrect attitude and have welcomed your brother's gift because of his sound choice, that I have stripped you of your pride of place and removed you from the distinction of firstborn. "'Be at peace," ' even if he has been deemed worthy of my regard and his gifts have proved acceptable, nevertheless "'his movement is towards you, and you will be superior to him.'" And so even after this sin I permit you to have the privilege of being firstborn, and I bid him be subject to your authority and your control.
See the Lord's loving kindness, how he wishes to defuse the wild frenzy and remove the anger by means of his words. You see, he observed the stages of his thinking and realized the savagery of his deadly intention; so he intends at this early stage to sedate his thinking and bring repose to his mind by placing his brother subject to him and not undermining his authority. But even despite such great concern and such potent remedies, Cain gained nothing from the experience. Such was the degree of difference in their attitudes and the excess of evil intent.
Lest, however, we prolong the sermon unduly and thus seem to tax the patience of your good selves, and lest our homily bore you to tears and be considered an ordeal to you, let us bring the talking to a halt at this stage. Let us commend this point to your warm attention, to avoid imitating conduct of that kind, bid good riddance to evil, and devote yourself to the Lord's command with great attention and with your whole heart, especially in the wake of such examples and others like them. I mean, in future none of us will be able to take refuge in ignorance. After all, if that manÐI mean CainÐwas not in a position to find anyone living before his time who did anything of that kind, and still was subjected to that severe and unbearable punishment, as you will later discover, what is it likely that we will sufferÐ we who have committed those sins and even worse ones despite such a generous measure of grace? Will it not assuredly be everlasting fire, the worm that does not die, gnashing of teeth, exterior darkness, a fiery hell and all those other ineluctable punishments awaiting us? I mean, there will be no grounds for excuse left for us, since we have been so much disposed to sloth and so remiss Surely, after all, we are all aware of what is to be done, and the sorts of things that should not be done? and that those who practice the former will enjoy the choicest of rewards, while those who fall victim to the latter will undergo condemnation to the most extreme of penalties?
Hence I beseech, entreat and implore you not to let our assembling here prove to be of no avail; instead, let attention to our words be followed by deeds, so that having the certainty that comes from a good conscience and being buoyed up already in our present situation with sound hope, we may be able to negotiate with ease this life's sea of prob- lems and put in at the harbor of God's loving kindness, thus attaining to those good things beyond all telling which the Lord has promised to those who love him, thanks to the grace and mercy of his only-begotten Son, to whom with the holy and adorable Spirit be glory, power and honor, now and forever, for all ages of ages. Amen.