Revelation 9:9-11

Lexham English Bible

⁹ and they had breastplates like iron breastplates, and the sound of their wings was like the sound of many horse-drawn chariots^[a] running into battle. ¹⁰ And they have tails similar in appearance to scorpions, and stings, and their power to injure people for five months is in their tails. ¹¹ They have as king over them the angel of the abyss, whose name^[b] in Hebrew is Abaddon, and in Greek he has the name Apollyon.