en_tn_condensed/job/20/18.md

the fruit of his labor

Normally "the fruit of his labor" simply refers to the results of his labor. In this case it refers to the things the wicked man had stolen. Alternate translation: "the things he had worked to get" or "the things he had stolen" (See: rc://en/ta/man/jit/figs-metaphor and rc://en/ta/man/jit/figs-explicit)

will not be able to swallow it

Here "to swallow" the fruit of his labor represents enjoying the things he had stolen. Alternate translation: "will not be able to enjoy them" (See: rc://en/ta/man/jit/figs-metaphor)