Should Christians be concerned with material things?

Should Christians be concerned with material things?
No, they shouldn't be.	Yes, they should be.
Matthew 6:31, 34 Therefore take no thought, saying, What shall we eat? or, What shall we drink? or, Wherewithal shall we be clothed? ... Take therefore no thought for the morrow.	1 Timothy 5:8 But if any provide not for his own house, he hath denied the faith, and is worse than an infidel.