Therefore covetousness is setting something other than God at the center of your heart and life. Covetousness, then, is a foolish valuing of earthly things as being an end in themselves. The apostle is writing to Hebrew Christians who were in many ways in danger of losing their earthly goods, everything that they had. And it stirred up in them a desire to have more. They did not want to turn their back upon those earthly possessions for the sake of Christ.
Covetousness is a great danger in time of persecution.
Let your conversation, your life, be without covetousness. Let it be without it. You cannot tame it, you cannot allow a little bit of it into your heart. Let it be without covetousness. And be content with such things as ye have.