'Voices' in the Bible

Then I looked, and I heard the voices of many angels, the living creatures, and the elders surrounding the throne. They numbered 10,000's times 10,000 and thousands times thousands.

he shouted in a loud voice as a lion roars. When he shouted, the seven thunders spoke with voices of their own.

When the seventh angel blew his trumpet, there were loud voices in heaven, saying, "The world's kingdom has become the kingdom of our Lord and of his Messiah, and he will rule forever and ever."