The disciple Jude warned about them, saying: “These are the rocks hidden below water in your love feasts while they feast with you, shepherds that feed themselves without fear; waterless clouds carried this way and that by winds; trees in late autumn, but fruitless. ” ​ — Jude 12.
पाण्याच्या शांत प्रवाहाखाली झाकल्या गेलेल्या टोकदार खडकांप्रमाणे असणाऱ्‍या या व्यक्‍तीमुळे बेसावध असणाऱ्‍यांचे आध्यात्मिक जहाज बुडू शकते.