In scenes 5 to 7 list evidence that supports a reading that Macbeth is more frightened by the plan to kill Duncan than Lady Macbeth.?

Contrast Lady Macbeth's speeches in act I scene 5 starting "Glamis thou art, and Cawdor, and shalt be what thou art promised" and "Come you spirits that tend on mortal thoughts, unsex me here." with Macbeth's great speech in scene 7, "If it were done when "tis done, then 'twere well it were done quickly". Mind you, that speech does not so much show that Macbeth is afraid to do the murder as he can see in the long term the risks far outweigh the potential gain. He has already said in scene 3 "If chance would have me king, then chance may crown me without my stir," so the benefit of the murder is not clear. The best evidence that he is actually afraid is in scene 3 when he says, "Why do I yield to that suggestion whose horrid image doth unfix my hair . . ."