ἦν δὲ ἡ ἰδέα αὐτοῦ ὡς ἀστραπὴ καὶ τὸ ἔνδυμα αὐτοῦ λευκὸν ὡσεὶ χιών.

1. ἦν
   was
2. δὲ
   but
   and
3. ἡ
   the
   or
4. ἰδέα
   idea
   form
5. αὐτοῦ
   his
6. ὡς
   as
7. ἀστραπὴ
   lightning
8. καὶ
   and
9. τὸ
   the
10. ἔνδυμα
    garment
11. αὐτοῦ
    his
12. λευκὸν
    white
13. ὡσεὶ
    like
    as if, as
14. χιών
    snow
15.  
    .
     

His appearance was like lightning and his garment was white as snow.