G5458–φωστήρ–phōstēr

So that you may be holy and gentle, children of God without sin in a twisted and foolish generation, among whom you are seen as lights in the world,

φωστῆρες phōstēres “lights”

Having the glory of God: and her light was like a stone of great price, a jasper stone, clear as glass:

φωστὴρ phōstēr “radiance”