καὶ αὕτη ἐστὶν ἡ μαρτυρία, ὅτι ζωὴν αἰώνιον ἔδωκεν ἡμῖν ὁ Θεός, καὶ αὕτη ἡ ζωὴ ἐν τῷ υἱῷ αὐτοῦ ἐστιν.

1. καὶ
   and
2. αὕτη
   this
3. ἐστὶν
   is
4. ἡ
   the
   or
5. μαρτυρία
   testimonies
   testimony
6.  
   ,
    
7. ὅτι
   that
   because
8. ζωὴν
   life
9. αἰώνιον
   eternal
10. ἔδωκεν
    gave
    he gave
11. ἡμῖν
    to us
    us
12. ὁ
    the
13. Θεός
    God
14.  
    ,
     
15. καὶ
    and
16. αὕτη
    this
17. ἡ
    the
    or
18. ζωὴ
    life
19. ἐν
    in
20. τῷ
    the
    to the
21. υἱῷ
    son
22. αὐτοῦ
    his
23. ἐστιν
    is
24.  
    .
     

And this is the testimony: that God gave eternal life to us, and this life is in his Son.