'Fierceness' in the Bible

and thou hast said unto him: 'Take heed, and be quiet, fear not, And let not thy heart be timid, Because of these two tails of smoking brands, For the fierceness of the anger of Rezin and Aram, And the son of Remaliah.

So He poured out on him the heat of His angerAnd the fierceness of battle;And it set him aflame all around,Yet he did not recognize it;And it burned him, but he paid no attention.

For, behold, Jehovah will come with fire, and his chariots shall be like the whirlwind; to render his anger with fierceness, and his rebuke with flames of fire.