Prospering and being wealthy are not necessarily synonymous. A much better gospel definition of prospering in the land is having sufficient for our needs while having the abundant blessing of the Spirit in our lives. When we provide for our families and love and serve the Savior, we will enjoy the reward of having the Spirit and prospering in the land.
-Elder Quentin L. Cook, "Reaping the Rewards of Righteousness," Ensign, July 2015.