Revelation 9:10

“And they had tails like unto scorpions, etc.] Locusts are said to have the tail of a serpent, and of the vipers of the earth f284; (see Gill on “<660903>Revelation 9:3”), (see Gill on “<660905>Revelation 9:5”). And there were stings in their tails; either in the baser sort of them, the Saracens and Papists; or in their doctrines, the prophet being the tail, (<230915>Isaiah 9:15); with which both Mahomet, who set himself up for a prophet, and the Romish clergy, who set up their decrees and unwritten traditions above the word of God, have poisoned and destroyed multitudes of souls: and their power [was] to hurt men five months; (see Gill on “<660905>Revelation 9:5”).”

“tails like unto scorpions--like unto the tails of scorpions. and there were stings--There is no oldest manuscript for this reading. A, B, Aleph, Syriac, and Coptic read, "and (they have) stings: and in their tails (is) their power (literally, 'authority': authorized power) to hurt."”

“And they had tails like unto scorpions - The fancy of an Arab now often discerns a resemblance between the tail of the locust and the scorpion. See the remark of Niebuhr, quoted in the notes on Revelation 9:7. And there were stings in their tails - Like the stings of scorpions. See the notes on Revelation 9:3. This made the locusts which appeared to John the more remarkable, for though the fancy may imagine a resemblance between the tail of a locust and a scorpion, yet the locusts have properly no sting. The only thing which they have resembling a sting is a hard bony subsubstance like a needle, with which the female punctures the bark and wood of trees in order to deposit her eggs. It has,…”

“And they have tails like scorpions - That is, each tail is like a scorpion, not like the tail of a scorpion. To hurt the unsealed men five months - Five prophetic months; that is, seventy - nine common years So long did these calamities last. Revelation 9:11”

“tails: Rev 9:3, Rev 9:5 Revelation 9:11”