'Fierceness' in the Bible

Therefore he poured upon him the fierceness of his anger, and the strength of battle; and it set him on fire round about, yet he knew not; and it burned him, yet he laid it not to heart.

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.