'Fuel' in the Bible

Behold, it is cast into the fire for fuel; the fire devoureth both the ends of it, and the midst of it is burned. Is it meet for any work?

Therefore thus saith the Lord GOD; As the vine tree among the trees of the forest, which I have given to the fire for fuel, so will I give the inhabitants of Jerusalem.

Thou shalt be for fuel to the fire; thy blood shall be in the midst of the land; thou shalt be no more remembered: for I the LORD have spoken it.