πάντα οὖν ὅσα ἐὰν εἴπωσιν ὑμῖν τηρεῖν, τηρεῖτε καὶ ποιεῖτε, κατὰ δὲ τὰ ἔργα αὐτῶν μὴ ποιεῖτε· λέγουσι γάρ, καὶ οὐ ποιοῦσι.

1. πάντα
   all
2. οὖν
   therefore
3. ὅσα
   as many as
4. ἐὰν
   if
5. εἴπωσιν
   they say
   they might say
6. ὑμῖν
   to you
7. τηρεῖν
   to keep
   to guard
8.  
   ,
    
9. τηρεῖτε
   keep
10. καὶ
    and
11. ποιεῖτε
    do
    you do
12.  
    ,
     
13. κατὰ
    according to
14. δὲ
    but
    and
15. τὰ
    the
16. ἔργα
    works
17. αὐτῶν
    their
    of them
18. μὴ
    not
19. ποιεῖτε
    do
    you do
20.  
    ·
     
21. λέγουσι
    they say
22. γάρ
    for
23.  
    ,
     
24. καὶ
    and
25. οὐ
    not
26. ποιοῦσι
    they do
    do, they make
27.  
    .
     

Therefore, keep and do everything they tell you to keep, but do not do according to their works, for they say things and do not do them.