Force Community

ROUND 3: A thief enters a shop and threatens the clerk, forcing him to open the safe. The clerk says, "The code for the safe is different every day, and if you hurt me you'll never get the code". But the thief manages to guess the code on his own

what is it?

Can you find the password hidden in this poem? Only the first five to answer correctly will go through to my next challenge (officially) others can still participate but not count in the final draw to find who's the riddler amongst us...

Sir, I bear a rhyme excelling In mystic force and magic spelling Celestial sprites elucidate All my own striving cant relate