en_tn/job/28/05.md

the earth, out of which comes bread

Here "bread" represents food in general. Food coming out of the ground is a metaphor for food growing out of the ground. Alternate translation: "the earth, where food grows" (See: rc://en/ta/man/jit/figs-synecdoche and rc://en/ta/man/jit/figs-metaphor)

it is turned up below as if by fire

Possible meanings are that 1) people made fires under the ground to break apart the rock. Alternate translation: "it is broken up below by the fires that the miners make" or 2) "turned" is a metaphor for changed. Alternate translation: "it is broken up below so much that it appears that it was destroyed by fire"

it is turned

The word "it" refers to the earth.