4. [These act] as Cain [did, who], when he was counselled by God to keep quiet, because he had not made an equitable division of that share to which his brother was entitled, but with envy and malice thought that he could domineer over him, not only did not acquiesce, but even added sin to sin, indicating his state of mind by his action. For what he had planned, that did he also put in practice: he tyrannized over and slew him; God subjecting the just to the unjust, that the former might be proved as the just one by the things which he suffered, and the latter detected as the unjust by those which he perpetrated. And he was not softened even by this, nor did he stop short with that evil deed; but being asked where his brother was, he said, “I know not; am I my brother’s keeper?” extending and aggravating [his] wickedness by his answer. For if it is wicked to slay a brother, much worse is it thus insolently and irreverently to reply to the omniscient God as if he could battle Him. And for this he did himself bear a curse about with him, because he gratuitously brought an offering of sin, having had no reverence for God, nor being put to confusion by the act of fratricide.