A third of humanity was killed by these three plagues, that is, ¹  by the fire, the smoke, and the sulfur that came out of their mouths.

Now ¹  this is what the horses and their riders ²  looked like in my ³  vision: The riders had breastplates that were fiery red, ⁴  dark blue, ⁵  and sulfurous ⁶  yellow in color. ⁷  The ⁸  heads of the horses looked like lions’ heads, and fire, smoke, and sulfur ⁹  came out of their mouths.