Materialism

... [We] strive to participate in God's kingdom while also straining to play by the values of a fallen kingdom. I submit to you that many of us live a hybrid approach to discipleship and wealth. We desire to be successful in two kingdoms, and often the results are either disastrous, or a slow grinding death of our spiritual vitality...

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Jesus never speaks of possessions per se as evil, nor does he glorify poverty. However, he does reveal the potential danger in material possessions - particularly how they lead us down the path of idolatry. Our material possessions seductively draw us away from total allegiance to Christ. Herein lies the crux of our dilemma; for one of the greatest threats to faithful discipleship are our own material belongings. Jesus fundamentally understands our fallen human nature and declares what we intuitively know, that where our treasure is, there our heart also resides (Lk 12:34).

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... [It] is not my intention to single out, or demote Christians with financial means; but rather, I have challenged all Christians (myself included) to consider their discipleship and how their personal financial goals, integrate with their pursuit of Christ. To be sure, Christians of all income levels wrestle with how to negotiate their financial reality with their discipleship. I have witnessed missionaries, with very little income, caught in the same web of materialism as that of wealthier Christians owning multiple homes. The numbers may be different but the deceptions and tensions the same.

-- "Lord, Won't You Buy Me a Mercedes Benz" by Günther Mueller, Vantage Point (links mine)