Alma 5:52

And again I say unto you, the spirit saith, Behold, the axe is laid at the root of the tree; therefore every tree that bringeth not forth good fruit, shall be hewn down and cast into the fire; yea, a fire which cannot be consumed; even an unquenchable fire. Behold, and remember, the holy one hath spoken it.

I tell you again, the Spirit says: “The ax is ready to cut down the tree. Every tree that does not make good fruit will be cut down and thrown into the fire. A fire that cannot be put out. A fire that will not stop burning.” The holy one has said this.

And again, the Spirit says: “The ax is laid at the root of the tree. Every tree that doesn’t produce good fruit will be cut down and thrown into the fire—a fire that can’t be put out, an unquenchable fire. Remember, the Holy One has spoken.”