Wahyu 9:11

9:11 They have as king over them the angel of the abyss, whose name in Hebrew is Abaddon, and in Greek, Apollyon. ¹ 

Wahyu 2:3

2:3 I am also aware ²  that you have persisted steadfastly, ³  endured much for the sake of my name, and have not grown weary.

[9:11]  ¹ sn Both the Hebrew Abaddon and the Greek Apollyon mean “Destroyer.”

[2:3]  ² tn Because of the length and complexity of this Greek sentence, a new sentence was started here in the translation by supplying the phrase “I am also aware” to link this English sentence back to “I know” at the beginning of v. 2.

[2:3]  ³ tn The Greek word translated “persisted steadfastly” (ὑπομονή, Jupomonh) is the same one translated “steadfast endurance” in v. 2.