'Profitable' in the Bible

Can a man be profitable unto God? Surely he that is wise is profitable unto himself.

She perceiveth that her merchandise is profitable: Her lamp goeth not out by night.

If the iron be blunt, and one do not whet the edge, then must he put to more strength: but wisdom is profitable to direct.

Who hath fashioned a god, or molten an image that is profitable for nothing?

Then I went to the Euphrates, and digged, and took the girdle from the place where I had hid it; and, behold, the girdle was marred, it was profitable for nothing.

This evil people, that refuse to hear my words, that walk in the stubbornness of their heart, and are gone after other gods to serve them, and to worship them, shall even be as this girdle, which is profitable for nothing.

Behold, it is cast into the fire for fuel; the fire hath devoured both the ends of it, and the midst of it is burned: is it profitable for any work?