en_tn_condensed/rev/19/15.md

Out of his mouth goes a sharp sword

The sword blade was sticking out of his mouth. The sword itself was not in motion.

strikes down the nations

"destroys the nations" or "brings the nations under his control"

rule them with an iron rod

John speaks of the rider's power as if he were ruling with an iron rod.

He tramples in the winepress of the fury of the wrath of God Almighty

"He crushes his enemies according to the judgment of God Almighty, just as a person crushes grapes in a winepress"