1. Avaunt, and quit my sight! Let the earth hide thee! (3.4.112) Macbeth is still trying to understand how Banquo can appear to him after he's dead, …

2. Later, Macbeth in his lust for power sees Banquo as a threat and has him murdered by two hired assassins; Banquo's son, Fleance, escapes.

3. 1605, William Shakespeare, Macbeth, Act III, Scene 2,[1] There’s comfort yet; they [Banquo and Fleance] are Assailable; / Then be thou jocund: ere the bat hath flown / His cloister’d flight […] there shall be done / A deed of dreadful note