en_tn/isa/34/03.md

The bodies of their dead will be thrown out

This can be stated in active form. AT: "No one will bury their dead" (See: rc://en/ta/man/translate/figs-activepassive)

their dead

This refers to the dead people. AT: "those who died" (See: rc://en/ta/man/translate/figs-nominaladj)

the mountains will soak up their blood

"the mountains will be covered in their blood"