σήμερον ἐὰν τῆς φωνῆς αὐτοῦ ἀκούσητε, μὴ σκληρύνητε τὰς καρδίας ὑμῶν, ὡς ἐν τῷ παραπικρασμῷ, κατὰ τὴν ἡμέραν τοῦ πικρασμοῦ ἐν τῇ ἐρήμῳ,

1. σήμερον
   today
2. ἐὰν
   if
3. τῆς
   of the
   the
4. φωνῆς
   voice
5. αὐτοῦ
   his
6. ἀκούσητε
   you hear
7.  
   ,
    
8. μὴ
   not
9. σκληρύνητε
   harden
10. τὰς
    the
11. καρδίας
    heart
12. ὑμῶν
    your
13.  
    ,
     
14. ὡς
    as
15. ἐν
    in
16. τῷ
    the
    to the
17. παραπικρασμῷ
    rebellion
18.  
    ,
     
19. κατὰ
    according to
20. τὴν
    the
21. ἡμέραν
    day
22. τοῦ
    of the
    the
23. πικρασμοῦ
    testing
24. ἐν
    in
25. τῇ
    the
26. ἐρήμῳ
    wilderness
27.  
    ,
     

Today if you hear his voice, do not harden your hearts as in the rebellion, according to the day of testing in the wilderness.