The book is traditionally attributed to John the Apostle,[1][2] but the precise identity of the author remains a point of academic debate.

Some early manuscripts containing the text of this chapter are among others:[6][a] English nonconformist Moses Lowman explains that "stars, in the language of prophecy, signify angels.

[10] "The key to the bottomless pit" (Biblical Greek: ἡ κλεὶς τοῦ φρέατος τῆς ἀβύσσου, romanized: hē kleis tou phreatos tēs abyssou) is translated as "the key to the shaft of the Abyss" in the New International Version.

[12] Early Methodist theologian Joseph Benson says that this instruction "demonstrates that they were not natural but symbolical locusts.

[17] This article incorporates text from this source, which is in the public domain: Gill, John.