Thomas Brooks emphasizes the eternal nature of the believer's crown of glory, contrasting it with earthly crowns that are temporary and fleeting, much like tennis balls that are passed around until they wear out. He highlights that while earthly achievements may bring momentary satisfaction, they ultimately fade, whereas the crown of glory bestowed upon believers remains fresh and flourishing for eternity. Brooks reassures that no force, not even the devils in hell, can take away a believer's heavenly inheritance, which is far superior to anything this world offers. The sermon encourages believers to focus on their eternal rewards rather than the transient accolades of this life.