Technique name? (1 Viewer)

[YouCantMakeMe]

Hey guys,
Does anyone have any idea what the literary technique in "Upon who shall he grant shelter under his wing?" is? ("He" is referring to a human)

So far, I know it's a rhetorical quesiton, but I'm also looking for a technique (which I'm sure exists) that encompasses the metaphorical and proverbial impact of the quote.
(did that make sense? soz)

Thanks!

 

[YouCantMakeMe]

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[sy37]

We'll need more context..

 

[YouCantMakeMe]

We'll need more context..

What do you mean?

 

[YouCantMakeMe]

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[YouCantMakeMe]

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[YouCantMakeMe]

bumpp

 

[Evertone]

wing is metonymy for financial or physical accommodation.