Macbeth. bring me no more reports; let them fly all! till birnam wood remove to dunsinane i cannot taint with fear. what’s the boy malcolm? was he not born of woman? the spirits that know all mortal consequences have pronounced me thus: “fear not, macbeth; no man that’s born of woman shall e’er have power upon thee.” what is the main idea of the lines spoken by macbeth from act v of the tragedy of macbeth by william shakespeare? macbeth is worried that he is losing heart in the face of the upcoming battle. macbeth knows that birnam wood is approaching and his end is near. macbeth is confident that the witches’ prophecies are true and nothing can harm him. macbeth knows that malcolm was “ripped from his mother’s womb” and can therefore harm him.