29 The crowd that stood by, and heard it, said that it thundered: others said, An angel spoke to him.
John 12:29 Cross References - RKJNT
Acts 23:8-9
8 For the Sadducees say that there is no resurrection, nor angels, or spirits: but the Pharisees acknowledge both.
9 And there arose a great cry: and the scribes that were of the Pharisees' party arose, and argued vigorously, saying, We find no evil in this man: what if a spirit or an angel has spoken to him?
Revelation 6:1
1 Then I saw when the Lamb opened one of the seals, and I heard one of the four living creatures saying, as with a voice of thunder, Come.
Revelation 8:5
5 And the angel took the censer, and filled it with fire from the altar, and cast it upon the earth: and there were rumblings, and peals of thunder, and flashes of lightning, and an earthquake.
Revelation 11:19
19 Then the temple of God in heaven was opened, and there was seen in his temple the ark of his covenant: and there were flashes of lightning, and rumblings, and peals of thunder, and an earthquake, and a great hailstorm.
Revelation 14:2
2 And I heard a voice from heaven, like the sound of many waters, and like the roar of great thunder: the voice I heard was like the sound of harpists playing upon their harps:
Revelation 18:1-2
1 And after these things I saw another angel come down from heaven, having great power; and the earth was illuminated by his glory.
2 And he cried out with a mighty voice, saying, Fallen, fallen is Babylon the great. It has become the dwelling place of devils, and the haunt of every foul spirit, and a haunt of every unclean and loathsome bird.