Deut. 6:10-12: When the Lord your God brings you into… a land with large, flourishing cities you did not build, houses filled with all kinds of good things you did not provide, wells you did not dig, and vineyards and olive groves you did not plant—then when you eat and are satisfied, be careful that you do not forget the Lord, who brought you out of Egypt, out of the land of slavery (NIV).
It is so easy to take credit for the good things we acquire. But, we must not forget (or let our children forget) that all of our material possessions are blessings that God, in His grace, allowed us to have. And, the best things we have accumulated here on earth are nothing compared to the riches we will inherit as heirs of the Kingdom of God!
Despite what our culture may tell us, we have not earned our material blessings. There are others in less fortunate parts of the world who are far more deserving, but God did not choose to bless them as abundantly. Others have worked harder for less, yet still humbly accept the blessings God gives them as more than they deserve.
Humble yourself and thank God for the blessings He gives you.