The sovereignty will fall upon Macbeth.
Macduff. He is already named, and gone to Scone
To be invested.
The fall an Irony Action.
Twice, then, in the course of the rise Destiny allows obstacles to appear only for the sake of using them as an unexpected means of fulfilment. The same mockery marks the fall of the action. The security against a fall promised by the Apparitions to Macbeth had just one drawback—'beware Macduff'; iv. i. 71. iv. ii, &c.and we have already had occasion to notice Macbeth's attempt to secure himself against this drawback in the completest manner by extirpating the dangerous thane and his family to the last scion of his stock, and also how this cruel purpose succeeded against all but Macduff himself. Now it is to be noted that this attempt against the fulfilment of the destined retribution proves the very source of the fulfilment, without which it would never have come about. For at one point of the story Macduff, the only man who, according to the decrees of Fate, can harm Macbeth, resolves to abandon his vengeance against him. In his over-cautious policy Macduff was unwilling to move without the concurrence of Malcolm the rightful heir. iv. iii.In one of the most singular scenes in all Shakespeare Macduff is represented as urging Malcolm to assert his rights, while Malcolm (in reality driven by the general panic to suspect even Macduff) discourages his attempts, and affects to be a monster of iniquity, surpassing the tyrant of Scotland himself. iv. iii, from 100.At last he succeeds in convincing Macduff of his villainies, and in a burst of despair the fate-appointed avenger renounces vengeance.
Macduff. Fit to govern?
No, not to live.... Fare thee well!
These evils thou repeat'st upon thyself
Have banish'd me from Scotland. O my breast
Thy hope ends here!