And what again, on the other hand, (q.d.) can be more devil-like, than such a temper as Cain's was, whose hatred of his brother brake out into actual murder, upon no other account but because his brother was better than he? Which showed him to be of that wicked one, of the serpent's seed: so early was such seed sown, and so ancient the enmity between seed and seed.
Related Commentaries of 1 John 3:12
1 John 3:12
12 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.