Every one who is found will be thrust through ... every one who is swept up will die by the sword

These two phrases mean basically the same thing. This can be stated in active form. Alternate translation: "The enemy will kill with the sword everyone they find" (See: rc://en/ta/man/jit/figs-parallelism and rc://en/ta/man/jit/figs-activepassive)

swept up

captured