'Spark' in the Bible

Yea, the light of the wicked shall be put out, and the spark of his fire shall not shine.

And the strong shall be as tow, and the maker of it as a spark, and they shall both burn together, and none shall quench them.

Therefore, because that the word of the king is urgent, and the furnace heated exceedingly, those men who have taken up Shadrach, Meshach, and Abed-Nego -- killed them hath the spark of the fire.

In the same sense, the tongue is a small part of the body, and yet it boasts of great things.See [by comparison] how great a forest is set on fire by a small spark!