This is a figurative way of describing human beings, who were created out of the dust of the earth and whose bodies are like houses, which are made of clay and have dirt foundations. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Possible meanings for this metaphor are 1) "who God destroys as easily as he crushes a moth" or 2) "whose lives are as short as the life of a moth." (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-activepassive]])