'Thunders' in the Bible

and he shouted with a loud voice, like the roaring of a lion [compelling attention and inspiring awe]; and when he had shouted out, the seven peals of thunder spoke with their own voices [uttering their message in distinct words].

And when the seven peals of thunder had spoken, I was about to write; but I heard a voice from heaven saying, “Seal up the things which the seven peals of thunder have spoken and do not write them down.”