Why should Christians focus on spiritual riches instead of earthly prosperity?

In Psalm 73, the psalmist grapples with the apparent ease of the wicked, leading to envy over their earthly prosperity. However, Scripture consistently teaches that true riches are found in Christ and that these are of eternal significance. Matthew 6:19-21 urges believers to invest in treasures in heaven, rather than those on earth, which are fleeting. This perspective transforms how Christians view their circumstances, directing their focus away from material comparisons and toward the abundant spiritual blessings received in Christ. When we understand that our true inheritance lies in being united with Him, we can endure earthly hardships, resting in the assurance of our eternal standing before God.