Raging waves of the sea, foaming out their own shame; wandering stars, to whom is reserved the blackness of darkness for ever.
Raging - wild. Jude has in mind Isaiah 57:20.
Shame, х aischunas (G152)] - plural, 'shames' (cf. Philippians 3:19).
Wandering stars - instead of moving on in a regular orbit, as lights to the world, bursting forth like erratic comets, or rather fiery meteors, with a strange glare, then doomed to fall back again into black gloom.