ἐρευνᾶτε τὰς γραφάς, ὅτι ὑμεῖς δοκεῖτε ἐν αὐταῖς ζωὴν αἰώνιον ἔχειν· καὶ ἐκεῖναί εἰσιν αἱ μαρτυροῦσαι περὶ ἐμοῦ·

1. ἐρευνᾶτε
   you investigate
   investigate, search
2. τὰς
   the
3. γραφάς
   writings
4.  
   ,
    
5. ὅτι
   that
   because
6. ὑμεῖς
   you
7. δοκεῖτε
   you think
   do you think
8. ἐν
   in
9. αὐταῖς
   them
10. ζωὴν
    life
11. αἰώνιον
    eternal
12. ἔχειν
    to have
13.  
    ·
     
14. καὶ
    and
15. ἐκεῖναί
    those
16. εἰσιν
    are
17. αἱ
    the
18. μαρτυροῦσαι
    bearing witness
19. περὶ
    about
    concerning
20. ἐμοῦ
    me
21.  
    ·
     

You investigate the writings because you think that in them you have eternal life, and those are the ones that bear witness concerning me.