Final answer:
Malcolm speaks the final lines of the play 'Macbeth,' emphasizing the return of rightful leadership to Scotland.
Step-by-step explanation:
The final lines of the play Macbeth are spoken by Malcolm, who is representing the restoration of order and justice in Scotland after Macbeth's tyrannical rule comes to an end. Malcolm's last lines affirm his commitment to rewarding his allies and acknowledging those who have fought against Macbeth's reign. The significance of the rightful ruler on the throne is underscored by Malcolm's promise to call home all of Scotland's exiles and to heal the country from the wounds inflicted by Macbeth.