John the Apostle
Revelation 6:16ESV·traditional attribution

calling to the mountains and rocks, “Fall on us and hide us from the face of him who is seated on the throne, and from the wrath of the Lamb,

Matthew Henry Presbyterian @wholebiblehenry

In the remaining part of this chapter we have the opening of the fifth and the sixth seals. I. The fifth seal. Here is no mention made of any one who called the apostle to make his observation, probably because the decorum of the vision was to be observed, and each of the four living creatures had discharged its duty of a monitor before, or...

Commenting on Revelation 6:9-17

John Gill Reformed Baptist @doctorgill

And said to the mountains and rocks, fall on us,.... They chose death rather than life. Dioclesian being invited by Constantine to a marriage feast, excused himself by reason of his old age; but receiving threatening letters, the historian (t) says, in which he was charged with having favoured Maxentius, and with favouring Maximinus, he poisoned himself; and others of the emperors are said to...

Albert Barnes Presbyterian @notesbybarnes

Verse 16. And said to the mountains and rocks, Fall on us, etc.. This language is found substantially in : "And they shall say to the mountains, Cover us; and to the hills, Fall on us." It is also used by the Saviour as denoting the consternation which would occur at his coming: "Then shall they begin to say to the mountains, Fall on us...