Rev 9:9 | NASB | e4.org | They had breastplates like breastplates of iron ; and the sound of their wings was like the sound of chariots , of many horses rushing to battle .

‏ Revelation of John 9:9

9 They had breastplates like breastplates of iron; and the ^asound of their wings was like the sound of chariots, of many horses rushing to battle.