Not that I speak from want, for I have learned to be content in whatever circumstances I am. (Philippians 4:11)
A simple-minded Quaker went to his new neighbor who just moved in with all the furnishings and expensive toys that successful people collect; "Neighbor, if ever thou does need anything, come to see me, and I will teach you how to get along without it."
Contentment is one of the marks of a mature Christian. It is part of our human nature to be discontent. Try encouraging a new born child to wait contently to be fed for a couple of more hours while you get some needed rest. Try driving one mile per hour slower than the posted speed limit in the HOV lane and notice the lack of contentment and patience of those drivers behind you. As the Apostle wrote, contentment is a learned attribute.
When it comes to acquiring and owning stuff (all the material things we think we need or just want), learning to be content with what we already have begins with this important truth: We don't really own anything and we aren't entitled to receive anything. God owns everything and we are just stewards of whatever has been entrusted to us; The earth is the Lord's and all it contains, the world, and those who dwell in it. (Psalm 24:1)
Rich or poor, healthy or sick, popular or not, we are to be content in every circumstance. Not meaning complacent, lazy, fearful of risk or negligent. But rather content to wait on the Lord, always trusting Him and seeking His wisdom and instruction. Our responsibilities as His slave, including being content, are the same regardless of our current resources or circumstances; Do not worry then, saying "What will we eat?" or "What will we drink?" or "What will we wear for clothing?" For the Gentiles eagerly seek all these things; for your heavenly Father knows that you need all these things. But seek first His kingdom and His righteousness, all these things will be added to you.(Matthew 6:31-33)