First, read Philippians 4:11-13.
Are you satisfied? It is pretty obvious that the answer is often no. …It is true; you need what you lack, but what you lack is satisfaction in Jesus.
When you find your deepest satisfaction in Jesus, you are protected from bitterness in times of want and pride in times of abundance. The world and all good gifts within it are temporal blessings. For you, Christian, their presence should remind you of the Giver, and their absence should remind you of that which never fades nor can be taken away.
…Both guilt and greed in times of abundance are the responses of your heart when Jesus is not more glorious to you than the worldly gifts God has also given. If Jesus is your greatest treasure, you respond to God’s generosity in all areas of life with great joy and the desire to share what God has given you – both the worldly goods and the heavenly gospel.
On the other hand, you know what it is like to have little in this world and then struggle with jealousy and bitterness. But the root of the problem is the same – Jesus is not your greatest treasure. Jesus is enough. Do you believe that? …But that kind of satisfaction is only experienced when we understand our greatest needs to be redemption and restoration. God in Christ has reconciled us to himself, is renewing our minds, and promises to raise us from the dead, and we will dwell in righteousness and peace forever. If you have this, what more do you need?
Taken from Chap.8 “Jesus is Enough” in Note to Self: The Discipline of Preaching to Yourself by Joe Thorn (Crossway, 2011), pp.49-51.