How do we know the importance of being rich toward God?

To be rich toward God means to seek spiritual wealth rather than earthly treasures, prioritizing grace, faith, and good works above material possessions. Jesus illustrates this in Luke 12:21 by calling the man who hoards earthly goods a fool because his heart is not aligned with God. True wealth is found in the assurance of eternal life and the inheritance in heaven, which stands in contrast to the temporary nature of earthly riches. Therefore, the quest for eternal treasures must take precedence over the pursuit of fleeting, worldly wealth.