Solomon recognizes that a person can have an abundance of wealth and still lack the power to enjoy it and see it in its proper light. Rather than enjoying it, they are enslaved by it. They may drive a brand new vehicle, wear the latest fashions, and have the greatest stuff that money can buy, but they lack inner contentment.
The key phrase here is this—“…God does not give him power to enjoy.” It is yet another reminder from the pen of the Preacher that enjoyment doesn’t come from what we have or don’t have under the sun. Rather, enjoyment is a gift that God must give. It is something that can only be possessed through knowing Christ.