To Her Father with Some Verses
Financial language
Bradstreet shifts from personal gratitude into accounting terms: 'principal,' 'sum,' 'stock,' 'bond,' 'debt,' 'payment.' She's treating filial obligation as a literal unpayable loan, which makes the poem's emotional weight mathematical.
Kings and right
This legal maxim—that even kings forfeit their claims when nothing exists to claim—inverts power. Bradstreet uses it to explain why her meager gift is still valid. The phrase acknowledges her low social position while paradoxically making it logically sound.
Perpetual debt
The volta here: she can't discharge her obligation, only she can pay it, and payment remains incomplete until death. This redefines debt from transaction to lifelong condition—a daughter's duty as endless as life itself.