καὶ πᾶς ὁ ἔχων τὴν ἐλπίδα ταύτην ἐπ᾽ αὐτῷ ἁγνίζει ἑαυτόν, καθὼς ἐκεῖνος ἁγνός ἐστι.

1. καὶ
   and
2. πᾶς
   all
   every
3. ὁ
   the
4. ἔχων
   having
5. τὴν
   the
6. ἐλπίδα
   hope
7. ταύτην
   this
8. ἐπ᾽
   upon
9. αὐτῷ
   to him
10. ἁγνίζει
    purifies
11. ἑαυτόν
    himself
12.  
    ,
     
13. καθὼς
    as
14. ἐκεῖνος
    that one
    that
15. ἁγνός
    pure
16. ἐστι
    is
17.  
    .
     

And everyone having this hope in him purifies himself, just as that one is pure.