The sermon addresses the temptation for believers to seek solace and validation in external rituals or established institutions, particularly when facing life's difficulties and doubts. It emphasizes that Jesus, appointed by the Father and intimately acquainted with human frailty through suffering, is the sole source of eternal salvation, not through outward obedience but through faith in his completed work. The message ultimately points to Christ as the ultimate high priest, offering assurance and comfort, and encourages listeners to fix their gaze on him rather than seeking fulfillment in human systems or practices.