This compares how the peoples' dead bodies will be burned to the way thornbushes are burned. Also, this can be stated in active form. Alternate translation: "Fire will burn the peoples' bodies to lime in the same way that a farmer cuts down thornbushes and burns them" (See: [[rc://en/ta/man/translate/figs-simile]] and [[rc://en/ta/man/translate/figs-activepassive]])