'Fuel' in the Bible

In fact, it is put into the fire as fuel. The fire devours both of its ends, and the middle is charred. Can it be useful for anything?

“Therefore, this is what the Lord God says: Like the wood of the vine among the trees of the forest, which I have given to the fire as fuel, so I will give up the residents of Jerusalem.

You will be fuel for the fire.Your blood will be spilled in the land.You will not be remembered,for I, Yahweh, have spoken.”

Take the choicest of the flockand also pile up the fuel under it.Bring it to a boiland cook the bones in it.”