Dr. D. Todd Harrison uses Jesus' parable of the Prodigal Son to illustrate a common sentiment among long-time church members, who often feel resentful when inactive members are welcomed back with celebration. He explains that the elder brother in the parable represents those who have faithfully followed God's commandments, and he highlights the elder brother's frustration at seeing his brother's return celebrated while his own consistent service goes unnoticed. However, Dr. Harrison emphasizes that God's plan of salvation is inclusive, offering the promise of celestial glory to all, whether they have strayed or remained faithful. He cautions against judging who will receive the ultimate rewards, highlighting that this judgment belongs only to God. Dr. Harrison concludes by testifying to the divine nature of Jesus Christ, emphasizing his role as Savior and Redeemer.