David Wilkerson addresses the dangers of harboring resentment toward God, particularly among believers and ministers who feel disillusioned and burned out due to unmet expectations. He illustrates this through the story of Jonah, who, after obeying God's command, was disappointed when Nineveh was not destroyed as he anticipated. Jonah's expectations led to grief and anger, but God’s mercy prevailed, showing that His plans often differ from ours. Wilkerson emphasizes that God understands our struggles and encourages believers to seek Him for healing from bitterness and disappointment, reminding us that He rewards those who diligently seek Him.