Οὗτός ἐστιν ὁ ἐλθὼν δι᾽ ὕδατος καὶ αἵματος, Ἰησοῦς Χριστός· οὐκ ἐν τῷ ὕδατι μόνον, ἀλλ᾽ ἐν τῷ ὕδατι καὶ τῷ αἵματι· καὶ τὸ Πνεῦμά ἐστι τὸ μαρτυροῦν, ὅτι τὸ Πνεῦμά ἐστιν ἡ ἀλήθεια.

1. Οὗτός
   This
2. ἐστιν
   is
3. ὁ
   the
4. ἐλθὼν
   having come
5. δι᾽
   through
6. ὕδατος
   water
7. καὶ
   and
8. αἵματος
   blood
9.  
   ,
    
10. Ἰησοῦς
    Jesus
11. Χριστός
    Christ
12.  
    ·
     
13. οὐκ
    not
14. ἐν
    in
15. τῷ
    the
    to the
16. ὕδατι
    water
17. μόνον
    only
18.  
    ,
     
19. ἀλλ᾽
    but
20. ἐν
    in
21. τῷ
    the
    to the
22. ὕδατι
    water
23. καὶ
    and
24. τῷ
    the
    to the
25. αἵματι
    blood
26.  
    ·
     
27. καὶ
    and
28. τὸ
    the
29. Πνεῦμά
    Spirit
30. ἐστι
    is
31. τὸ
    the
32. μαρτυροῦν
    bearing witness
33.  
    ,
     
34. ὅτι
    that
    because
35. τὸ
    the
36. Πνεῦμά
    Spirit
37. ἐστιν
    is
38. ἡ
    the
    or
39. ἀλήθεια
    truth
40.  
    .
     

This is the one who came through water and blood, Jesus Christ—not by water only, but by water and blood. And the Spirit is the one who bears witness, because the Spirit is the truth.