John the Apostle
Revelation 9:10ESV·traditional attribution

They have tails and stings like scorpions, and their power to hurt people for five months is in their tails.

Matthew Henry Presbyterian @wholebiblehenry

Upon the sounding of this trumpet, the things to be observed are, 1. A star falling from heaven to the earth. Some think this star represents some eminent bishop in the Christian church, some angel of the church; for, in the same way of speaking by which pastors are called stars, the church is called heaven; but who this is expositors do not agree.

Commenting on Revelation 9:1-12

John Gill Reformed Baptist @doctorgill

And they had tails like unto scorpions,.... Locusts are said to have the tail of a serpent, and of the vipers of the earth (u); See Gill on Rev 9:3, Rev 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, Isa 9:15; with which both Mahomet...

Albert Barnes Presbyterian @notesbybarnes

Verse 10. 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 . And there were stings in their tails. Like the stings of scorpions. .