Luke 12:15 ESV “And he said to them, “Take care, and be on your guard against all covetousness, for one’s life does not consist in the abundance of his possessions.””

How should I guard my heart against all sorts of materialistic thoughts and desires? What happens when I don’t measure myself upto sharing the gospel of Jesus Christ? When my life is filled with abundant things things of the world, what does it happen in my spiritual journey to the gospel of truth?