'Lion' in the Bible

Does a lion roar in the forestwhen it has no prey?Does a young lion growl from its lairunless it has captured something?

A lion has roared;who will not fear?The Lord God has spoken;who will not prophesy?

It will be like a man who flees from a liononly to have a bear confront him.He goes home and rests his hand against the wallonly to have a snake bite him.