Revelation 9:11
Berean Standard Bible
They were ruled by a king, the angel of the Abyss. His name in Hebrew is Abaddon,* and in Greek it is Apollyon.*
Context
9They 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. 10They had tails with stingers like scorpions, which had the power to injure people for five months. 11They were ruled by a king, the angel of the Abyss. His name in Hebrew is Abaddon,* and in Greek it is Apollyon.* 12The first woe has passed. Behold, two woes are still to follow. 13Then the sixth angel sounded his trumpet, and I heard a voice from the four horns of the golden altar before God
English text: Berean Standard Bible (BSB). English audio: Berean Standard Audio Bible.