Matter itself is not evil, nor is it the source of evil. The source of evil is ethical, not metaphysical. It is not due to some inherent weakness or lack in the creation; it is due rather to the freely-willed decisions of moral beings. Evil enters when the good things of God's creation are used for the wrong ends or are made ends in themselves, as when one's appetites become his god (Philippians 3:19).
-Jack Cottrell