But little by little, as you left their voices behind
which of these best describes the metaphor in these lines?
implied
direct
uncertain
unclear

The methaohor in this lines is an implied metaphor. Option A is correct.

An implied metaphor is a type of metaphor that compares two unlike things without mentioning one of them.

Implied metaphors are slightly different from regular metaphors due to the fact that they don't specifically state what they're comparing. Implied metaphors allow writers to create vivid imagery in their prose.

in paragraph 6 of "sinners in the hands of an angry god" by jonathan edwards, he talks about how doing good things alone will not save men from going to hell because they're at the mercy of the will of god. "spiritual reform" provides men with a false sense of safety.