Matthew Poole and continuators on Jude 1:11

11 Wo unto them , for they have gone in the way of Cain , and ran greedily after the error of Balaam, and perished in the gainsaying of Core .

This is either a lamenting the misery that was to come upon them, or a foretelling it come, not a wishing that it might, Matth. 11.21. and 1 Cor. 9.16.

Followed his manners, and fallen under his Punishment. Their likeness to Cain, both as to their actions and the event of them, seems to be implied in this and the following clause, as well as it is plainly in the last.

Cain hated his Brother and slew him; they hate their Brethren, and by their pernitious Doctrines and Deceits, murder their Souls, and probably stir up Persecution against their Persons.

Covetousness, to which being excessively addicted, or, (as the Gr. implies) poured out, they did for the sake of filthy lucre corrupt the Doctrine of Christ, see 2 Pet. 2.15.

Corah (whom he here names alone, as being the Ringleader of the Rebellion, in which others joined with him, Numb. 1[illegible: 1 letter].1.) affecting the Priesthood, rose up Seditiously against Moses and Aaron, and perished in the attempt. These imitate him in their Rebellion against Christ himself, the state and order of whose Church they seditiously disturb, as well as that of the Civil State, in despising Dominion, and speaking evil of Dignities, and that to their own Destruction.

Marginal references: Gen. 4.5.; Num. 22.7, 21.