Macbeth states reasons for not killing Duncan, first he is Duncan’s kinsmen, second, his subject and third, his host. As Lady Macbeth approaches him during the dinner he immediately tells her other reasons. She belittles him, What beast was’t then……. (I. vii. 47-51)
Macbeth is questioned regarding his identity, his self esteem and courage to do the deed. Here the reader observes another instance where Lady Macbeth over powers Macbeth with simple words which will drive him to his fatal destiny. Lady Macbeth assures him,
A little water clears us of this deed: (II. Iii. 67)
This perhaps tells Macbeth that it was okay and perhaps this also acts as the catalyst to Macbeth’s later tyranny.
Lady Macbeth has been there all along, cheering Macbeth on as he ascended to the throne of Scotland. During his celebratory banquet, as the king, with the thanes, Macbeth sees the ghost of Banquo and has a fit. Lady Macbeth comes to his rescue,
Sit, worthy friends: my lord is often thus,
And hath been from his youth: pray you, keep seat; (III. Iv.