Ecclesiastes 2:8, 26

I also gathered silver and gold for myself, treasures from kings and other areas. I had male and female singers and all the women a man could ever want.

If people please God, God will give them wisdom, knowledge, and joy. But sinners will get only the work of gathering and storing wealth that they will have to give to the ones who please God. So all their work is useless, like chasing the wind.