Bede, on Jude 1:11

“Woe unto them, for they have gone in the way of Cain: and after the error of Balaam they have for reward poured out themselves, and have perished in the contradiction of Core.”

“Woe to them who have gone in the way of Cain, etc. They go in the way of Cain, who assume for themselves the name of learned men out of envy for their betters to be honored. And they pour themselves out in the error of Balaam, who for the love of earthly goods, attack the truth which they themselves know. They perish in the contradiction of Korah, who descended alive into the inferno, whoever separates themselves from the unity of the Holy Church with the desire of undue primacy, knowing and foreseeing how much evil they carry, yet they descend to the abyss of crimes. And indeed the Lord reproached Cain for thinking of fratricide, but envy did not let him be saved. Balaam, however, desiring to walk against the people of God, the Lord forbade, but the love of money hindered him from obeying. Moses tried to calm Korah, who was boasting, speaking for the Lord; but his pride made him incurable. Thus indeed, thus do heretics act, who, scorned by the rebuke of the holy Church, refuse to be corrected; rather they strive to kill their brothers with the sword of evil doctrine, as Cain did, deceive them with evil counsel as Balaam did, and rise up against catholic teachers as Korah did, to their own destruction.”

Imported from an open dataset — not yet checked against the printed edition.