'Profitable' in the Bible

“Will it be well for you when He investigates you [and your tactics against me]?Or will you deceive Him as one deceives a man?

“Can a vigorous man be of use to God,Or a wise man be useful to himself?

Who has made a god or cast an idol which is profitable for nothing?

These wicked and malevolent people, who refuse to listen to My words, who walk in the stubborn way of their heart and have followed other gods [which are nothing—just man-made carvings] to serve them and to worship them, let them be just like this waistband which is completely worthless.

If it has been thrown into the fire for fuel, and the fire has consumed both of its ends and the middle section has been charred, is it suitable or useful for anything?

Notice this, even when it was complete, it was not useful and was not made into anything. How much less, after the fire has burned [part of] it and [the remainder of] it is charred, can it still be made into anything?