And said to the mountains and rocks, Fall on us, and hide us from the face (cf. Hosea 10:8, "They shall say to the mountains, Cover us; and to the hills, Fall on us;" also Luke 23:30, "Then shall they begin to say to the mountains, Fall on us; and to the hills, Cover us ") of him that sitteth on the throne.
The Triune God (see on Revelation 4:2). And from the wrath of the Lamb. The result of the wroth of the Lamb is depicted in Revelation 21:8. God's wrath with the wicked is the assurance of his mercy and love for the righteous.
Thus in Revelation 11:18, we have, "The nations were angry, and thy wrath is come, and the time of the dead that they should be judged, and that thou shouldest give reward unto thy servants," etc. Similarly, in Revelation 14:10-13, the wrath of God upon the wicked is associated with the peace of the faithful.