They also had thoraxes like breastplates of iron, and the sound of their wings was like the roar of many horses and chariots rushing into battle.
Berean Standard Bible (BSB)
They had breastplates, like breastplates of iron. The sound of their wings was like the sound of chariots, or of many horses rushing to war.
World English Bible (WEB)
And{G2532} they had{G2192}{(G5707)} breastplates{G2382}, as it were{G5613} breastplates{G2382} of iron{G4603}; and{G2532} the sound{G5456} of their{G846} wings{G4420} was as{G5613} the sound{G5456} of chariots{G716} of many{G4183} horses{G2462} running{G5143}{(G5723)} to{G1519} battle{G4171}.
Strong's King James
(9) That have breastplates like breastplates of iron and their wings sound like the sound of chariots, many horses running to battle.
The F.O.G
The F.O.G Message
and they had breastplates as breastplates of iron, and the noise of their wings is as the noise of chariots of many horses running to battle;
Young's Literal Translation