In Revelation 12:3, this signifies insanity from truths falsified and profaned. (Apocalypse Revealed 540)

In Isaiah 28:5, this signifies intelligence of truth from divine good, while crown signifies wisdom that is from that good. (Apocalypse Explained 272[4])

In Revelation 19:12, this signifies all truths of faith. (Arcana Coelestia 2760)