Three Judgment Examples Warn the Community

Rescue is not a shield for later unbelief

I will therefore put you in remembrance, though ye once knew this, how that the Lord, having saved the people out of the land of Egypt, afterward destroyed them that believed not. A privileged beginning did not make later refusal harmless. The KJV reads 'the Lord'; some Greek witnesses read 'Jesus.' The warning is stable either way: being saved out of Egypt did not cancel judgment on unbelief.

This is a church reminder drawn from Israel's Scriptures, not a slur on Jewish people. Jude is not teaching that Jews as a people were discarded. He is telling readers who live inside that story that God's own rescued community can still refuse him, and that presumption is deadly.

Angels and cities warn against treating boundaries as optional

And the angels which kept not their first estate, but left their own habitation, he hath reserved in everlasting chains under darkness unto the judgment of the great day. Angels who did not keep their assigned place are themselves kept for judgment. Jude names abandonment and confinement. He does not narrate a full Watchers novel, rank demons, or hand readers a method of speculative spiritual warfare.

Even as Sodom and Gomorrha, and the cities about them in like manner, giving themselves over to fornication, and going after strange flesh, are set forth for an example, suffering the vengeance of eternal fire. The cities stand as a warning about sexual transgression, crossed boundaries, and judgment. 'In like manner' is disputed in its exact link. That uncertainty does not erase the example, and it does not authorize contempt toward modern people. The triad is about presumption, not about inventing enemies.