Jude 11 Woe to them! For they have gone in the way of Cain, have run greedily in the error of Balaam for profit, and perished in the rebellion of Korah.
Jude lifts three Biblical examples of rebellion and its consequent ruin, likening the false teachers to them. He prefaces this series of examples with a simple, “woe to them!” Woe is a word that indicates great sorrow. We search and find an excellent example of the usage of this word in Scripture if we turn our attention to Revelation.