'Roaring' in the Bible

“There will be signs (attesting miracles) in the sun and moon and stars; and on the earth [there will be] distress and anguish among nations, in perplexity at the roaring and tossing of the sea and the waves,

Be sober [well balanced and self-disciplined], be alert and cautious at all times. That enemy of yours, the devil, prowls around like a roaring lion [fiercely hungry], seeking someone to devour.

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].