"What I am truly, // Is thine, and my poor countries, to command" (Act 4) Macduff
Caesura (pause in middle of the line): The caesura would make the actor pause, allowing the audience to fully absorb Malcolm's honest dedication. He is, the embodiment of a true king.
Possessive pronoun "my": The possessive pronoun "my" before "poor countries" reveals not just ownership but a paternal (fatherly) tenderness. The word "poor" evokes sympathy for Scotland's suffering under Macbeth's dismantling rule.
"my poor country." Malcolm portrays himself not as a distant ruler, but as a compassionate protector which is a foil to the tyrannical (cruel) Macbeth.