Apocalipsis 9

And they had breastplates, as it were breastplates of iron; and the sound of their wings was as the sound of chariots of many horses running to battle.

Y tenían corazas como corazas de hierro; y el estruendo de sus alas, como el ruido de carros que con muchos caballos corren á la batalla.

They had breastplates like breastplates of iron. The sound of their wings was like the sound of many chariots and horses rushing to war.