Wahyu 9:9

Dada mereka kelihatan seperti ditutup perisai besi. Bunyi sayap mereka seperti gemuruh deru barisan kereta perang yang berderap ditarik kuda ke medan perang.

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.