'Lion' in the Bible

Does a lion roar in the forest {when he has no prey}? Does a fierce, young lion cry out from his den unless he has caught [something]?

A lion has roared! Who is not afraid? My Lord Yahweh has spoken, who will not prophesy?

Thus says Yahweh, "Just as the shepherd rescues two legs or a piece of an ear from the mouth of the lion, so shall the {people} of Israel who dwell in Samaria, with the corner of a couch and the damask of a bed."

[It will be] as [if] a man fled from a lion and a bear met him; or he went [into] the house and leaned his hand against the wall and a snake bit him.