i think that this song means to free yourself from religion telling you what to do or don't
so heaven's up against the wall, changes hold sway, the angels are the "bad guys", and the ministry of saints travel from place to place convincing people not to be slaves of religion (hence we can make you anyone)
OR
there are the bad angels, poisoned rain and stuff, so the ministry of saints will judge the angels and punish the bad ones when the seventh seal is broken(the judgement day) and that's also the flood
i dunno, complicated song
i think that this song means to free yourself from religion telling you what to do or don't so heaven's up against the wall, changes hold sway, the angels are the "bad guys", and the ministry of saints travel from place to place convincing people not to be slaves of religion (hence we can make you anyone) OR there are the bad angels, poisoned rain and stuff, so the ministry of saints will judge the angels and punish the bad ones when the seventh seal is broken(the judgement day) and that's also the flood i dunno, complicated song