en_tn/ezk/21/19.md

the sword of the king of Babylon

The word "sword" is a metonym for soldiers who kill people using swords. AT: "the soldiers of the king of Babylon" or "the Babylonian army" (See: rc://en/ta/man/translate/figs-metonymy)

a signpost will mark one of them as leading to a city

This is a sign posted where the road divides into two roads. AT: "a sign will be posted where the road divides into two roads" (See: rc://en/ta/man/translate/figs-explicit)