Final answer:
The paradox in John Donne's 'Holy Sonnet 10' is that though death is often seen as powerful and final, the poem asserts that death itself will ultimately 'die,' implying an afterlife where death has no dominion.
Step-by-step explanation:
The paradox at the end of Holy Sonnet 10, also known as Death, be not proud, by John Donne is that death itself will die. The poem personifies death and argues against its seeming power and inevitability, but concludes with the juxtaposition that death, which is often feared as the ultimate end, is not in fact the end at all. Donne's final couplet states, "And death shall be no more; Death, thou shalt die," suggesting that through eternal life, which can be interpreted as the afterlife in a Christian sense, the concept of death is rendered powerless and will ultimately cease to exist.