A HIDDEN REEF (plural spilades) — a rock just under the surface that tears the hull out of a ship that never saw it. Jude's image for the intruders 'in your love-feasts' (1:12): they sit at the common table and wreck the church from below, unseen. ⚠️ A near-identical word, spilos ('spot, blemish'), stands behind the parallel in 2 Peter 2:13, and some render Jude's word 'blemishes' — but the seafaring 'reef' suits his storm of sea-images (waves, wandering stars) and is kept here. → first discussed at Jude 1:12