Thomas Brooks emphasizes the futility of earthly inheritances, illustrating how they are subject to corruption and loss, much like the worthless land of Cabul given by Solomon. He warns that reliance on material wealth leads to impure desires and false confidence, ultimately resulting in spiritual decay. In contrast, Brooks highlights the value of an incorruptible inheritance found in Christ, which remains untouched by earthly troubles and offers true fulfillment. He encourages believers to seek their hope and security in heavenly treasures rather than transient earthly possessions.