Exastrapto combines ex (out) and astrapto (to flash/lighten). It appears once in the New Testament — Luke 9:29 — to describe Jesus's garments at the Transfiguration: 'and his clothing became dazzling white' (exastrapton). The word evokes lightning — not just white, but actively, brilliantly radiating light. This is no ordinary bleaching; it is the unveiled glory of the divine nature breaking through the incarnate flesh.
The exastrapton clothing of the Transfiguration is a preview of the glorified Christ of Revelation 1:16 — 'his face was like the sun shining in full strength.' The incarnation veiled the glory; the Transfiguration unveiled it briefly for three witnesses. The theology is significant: Jesus's divine glory was not added from outside but radiated from within. The human body of the Son of God was always the vessel of infinite light. At the resurrection, that glory becomes permanent, and believers are promised a share in it (Philippians 3:21).