Ἐκ τούτου πολλοὶ ἀπῆλθον ἐκ τῶν μαθητῶν αὐτοῦ εἰς τὰ ὀπίσω καὶ οὐκέτι μετ᾽ αὐτοῦ περιεπάτουν.

1. Ἐκ
   From
   Out of
2. τούτου
   this
   of this
3. πολλοὶ
   many
4. ἀπῆλθον
   they went away
5. ἐκ
   from
   out of
6. τῶν
   of the
7. μαθητῶν
   disciples
8. αὐτοῦ
   his
9. εἰς
   into
   to
10. τὰ
    the
11. ὀπίσω
    after
12. καὶ
    and
13. οὐκέτι
    no longer
14. μετ᾽
    with
15. αὐτοῦ
    his
16. περιεπάτουν
    they were walking
    walked
17.  
    .
     

From this, many of his disciples went back and no longer walked with him.