'Profitable' in the Bible

Can a man be profitable to God? surely it is unto himself that the wise man is profitable.

Moreover the earth is every way profitable: the king himself is dependent upon the field.

Wisdom is as good as an inheritance, and profitable to them that see the sun.

If the iron be blunt, and one do not whet the edge, then must he apply more strength; but wisdom is profitable to give success.

Who hath formed a god, or molten a graven image that is profitable for nothing?