Question

What figure of speech is used in these lines from Sonnet 10 of the Holy Sonnets by John Donne?

Death, be not proud, though some have called thee
Mighty and dreadful, for thou art not so;
For those whom thou think'st thou dost overthrow
Die not, poor Death, nor yet canst thou kill me.
synecdoche

personification

metonymy

metaphor

simile