Materialism occurs when the physical takes precedence over the spiritual. Materialistic people define themselves by their possessions. Materialism is focusing one’s desire upon gaining more things. The trap is that the more one gets they are never satisfied with what they have. These are people who have more money than they’ve ever had but are more miserable than they’ve ever been.
For the Christian the antidote for covetousness is contentment and the key to contentment is thankfulness!