John 12:28-29

Father, glorify thy name!" Whereupon there came a voice from heaven, saying, "I have both glorified it, and will glorify it again."

Hebrews 12:18-19

For you are not come to a palpable and enkindled fire,

Revelation 10:3-4

With a great voice he shouted as a lion roars; and when he shouted, the seven thunders uttered their voices.

Treasury of Scripture Knowledge

Summary

And the sound of the cherubims' wings was heard even to the outer court, as the voice of the Almighty God when he speaketh.

Bible References

The voice

John 12:28
Father, glorify thy name!" Whereupon there came a voice from heaven, saying, "I have both glorified it, and will glorify it again."
Hebrews 12:18
For you are not come to a palpable and enkindled fire,
Revelation 10:3
With a great voice he shouted as a lion roars; and when he shouted, the seven thunders uttered their voices.