Lyric discussion by CantGoOnWithoutYourLove 

hmm, i hear "i'm shackled and i'm bound" which actually fits in with that part of the song because he's telling how he's basically losing himself and who he used to be and he's asking God to come and save him from who has has become, so shackled and bound makes sense to me, because only God can free you from that.

at any rate, i love, love, love this song <3 amazing band (: