G0797–ἀστράπτω–astraptō

For as in a thunderstorm the bright light is seen from one end of the sky to the other, so will the Son of man be when his time comes.

ἀστράπτουσα astraptousa “is flashing”

And while they were in doubt about it, they saw two men in shining clothing by them:

ἀστραπτούσῃ. astraptousē “dazzling.”