Parallel
1 John 3:12
Clementine Vulgate · Berean Standard Bible
Non sicut Cain, qui ex maligno erat, et occidit fratrem suum. Et propter quid occidit eum ? Quoniam opera ejus maligna erant : fratris autem ejus, justa.
Do not be like Cain, who belonged to the evil one and murdered his brother. And why did Cain slay him? Because his own deeds were evil, while those of his brother were righteous.