John 12:29

The multitude that stood by, and heard it, said that it was thunder: others said, An angel hath spoken to him.

Acts 23:8-9

For the Sadducees say indeed, that there is no resurrection, nor angel, nor spirit: but the Pharisees confess both.

Revelation 6:1

AND I saw when the lamb opened one of the seals, and I heard one of the four living beings, saying, as with a voice of thunder, Come, and see.

Revelation 8:5

And the angel took the censer, and filled it from the fire of the altar, and cast it upon the earth: and there were voices, and thunders, and lightnings, and an earthquake.

Revelation 11:19

And the temple of God was opened in the heaven, and there appeared the ark of his covenant in his temple: and there were lightnings, and voices, and thunders, and earthquake, and a great hail.

Revelation 14:2

And I heard a voice from heaven, as the sound of many waters, and as the roar of loud thunder; and I heard the sound of harpers harping on their harps:

Revelation 18:1-2

AND after these things I saw an angel descending from heaven, having great authority; and the earth was enlightened by his glory.

Treasury of Scripture Knowledge

Summary

The people therefore, that stood by, and heard it, said that it thundered: others said, An angel spake to him.

Bible References

An angel

Acts 23:8
For the Sadducees say indeed, that there is no resurrection, nor angel, nor spirit: but the Pharisees confess both.
Revelation 18:1
AND after these things I saw an angel descending from heaven, having great authority; and the earth was enlightened by his glory.