not as Cain was of the evil one, and slew his brother. And wherefore slew he him? Because his works were evil, and his brother’s righteous.

Not being of the Evil One like Cain, who put his brother to death. And why did he put him to death? Because his works were evil and his brother's works were good.

ουχι καθως ο Καιν ητο εκ του πονηρου και εσφαξε τον αδελφον αυτου· και δια τι εσφαξεν αυτον; διοτι τα εργα αυτου ησαν πονηρα, τα δε του αδελφου αυτου δικαια.

Not as Cain, who was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother’s righteous.