Flame of fire

Is the chosen symbol of the holiness of God (Exodus 3:2; Revelation 2:18), as indicating "the intense, all-consuming operation of his holiness in relation to sin."

Noah Webster's New International Dictionary of the English Language

1. (n.) A stream of burning vapor or gas, emitting light and heat; darting or streaming fire; a blaze; a fire.

2. (n.) Burning zeal or passion; elevated and noble enthusiasm; glowing imagination; passionate excitement or anger.

3. (n.) Ardor of affection; the passion of love.

4. (n.) A person beloved; a sweetheart.

5. (n.) To burn with a flame or blaze; to burn as gas emitted from bodies in combustion; to blaze.

6. (n.) To burst forth like flame; to break out in violence of passion; to be kindled with zeal or ardor.

7. (v. t.) To kindle; to inflame; to excite.