'Profit' in the Bible

Then I saw all the works which my hands had made, and everything I had been working to do; and I saw that all was to no purpose and desire for wind, and there was no profit under the sun.

What profit has the worker in the work which he does?

He who has a love for silver never has enough silver, or he who has love for wealth, enough profit. This again is to no purpose.

When goods are increased, the number of those who take of them is increased; and what profit has the owner but to see them?

And this again is a great evil, that in all points as he came so will he go; and what profit has he in working for the wind?

Wisdom together with a heritage is good, and a profit to those who see the sun.