'Cast into the Fire' in the Bible

Let burning coals fall upon them: let them be cast into the fire; into deep pits, that they rise not again.

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 suitable for any work?

And now also the ax is laid to the root of the trees: therefore every tree which bringeth not forth good fruit is hewn down, and cast into the fire.

Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.

And now also the ax is laid to the root of the trees: every tree therefore which bringeth not forth good fruit, is hewn down, and cast into the fire.