'Lion' in the Bible

Be vigilant, watch. Your adversary the devil as a roaring lion walks about seeking whom he may devour.

and the first living creature like a lion, and the second living creature like a calf, and the third living creature having the face as of a man, and the fourth living creature like a flying eagle.

And one of the elders says to me, Do not weep. Behold, the lion which is of the tribe of Juda, the root of David, has overcome so as to open the book, and its seven seals.

and cried with a loud voice as a lion roars. And when he cried, the seven thunders uttered their own voices.