καὶ ὅταν τὰ ἴδια πρόβατα ἐκβάλῃ, ἔμπροσθεν αὐτῶν πορεύεται, καὶ τὰ πρόβατα αὐτῷ ἀκολουθεῖ, ὅτι οἴδασι τὴν φωνὴν αὐτοῦ·

1. καὶ
   and
2. ὅταν
   whenever
   when
3. τὰ
   the
4. ἴδια
   privately
5. πρόβατα
   sheep
6. ἐκβάλῃ
   he might cast out
   he may send out, he brings forth
7.  
   ,
    
8. ἔμπροσθεν
   before
9. αὐτῶν
   their
   of them
10. πορεύεται
    goes
11.  
    ,
     
12. καὶ
    and
13. τὰ
    the
14. πρόβατα
    sheep
15. αὐτῷ
    to him
16. ἀκολουθεῖ
    follows
    follow
17.  
    ,
     
18. ὅτι
    that
    because
19. οἴδασι
    they know
20. τὴν
    the
21. φωνὴν
    voice
22. αὐτοῦ
    his
23.  
    ·
     

And whenever he brings forth his own sheep, he goes before them, and the sheep follow him, because they know his voice,