Ὅτι τὸ καύχημα τῆς δυνάμεως αὐτῶν σὺ εἶ, καὶ ἐν τῇ εὐδοκίᾳ σου ὑψωθήσεται τὸ κέρας ἡμῶν·

1. Ὅτι
   That
   Because
2. τὸ
   the
3. καύχημα
   boast
4. τῆς
   of the
   the
5. δυνάμεως
   power
   force, strength
6. αὐτῶν
   their
   of them
7. σὺ
   you
8. εἶ
   if
9.  
   ,
    
10. καὶ
    and
11. ἐν
    in
12. τῇ
    the
13. εὐδοκίᾳ
    good pleasure
    favor, goodwill
14. σου
    your
15. ὑψωθήσεται
    will be exalted
16. τὸ
    the
17. κέρας
    horn
18. ἡμῶν
    our
19.  
    ·
     

Because you are the boast of their power, and in your favor our horn will be exalted.