καὶ ἔσται ὅταν μὴ βούλωνται δέξασθαι τὸ ποτήριον ἐκ τῆς χειρός σου ὥστε πιεῖν, καὶ ἐρεῖς Οὕτως εἶπεν Κύριος Πιόντες πίεσθε,

1. καὶ
   and
2. ἔσται
   will be
3. ὅταν
   whenever
   when
4. μὴ
   not
5. βούλωνται
   they wish
   wish
6. δέξασθαι
   to receive
7. τὸ
   the
8. ποτήριον
   cup
9. ἐκ
   from
   out of
10. τῆς
    of the
    the
11. χειρός
    hand
12. σου
    your
13. ὥστε
    so that
14. πιεῖν
    to drink
15.  
    ,
     
16. καὶ
    and
17. ἐρεῖς
    you will say
18. Οὕτως
    Thus
19. εἶπεν
    said
20. Κύριος
    Lord
21. Πιόντες
    Having drunk
    Drinking
22. πίεσθε
    drink
    you will drink
23.  
    ,
     

And whenever they do not wish to receive the cup from your hand to drink, then you will say, Thus said the Lord: You will surely drink,