Scripture warns that "the heart is deceitful above all things, and desperately wicked" (Jeremiah 17:9). In this self-examination message, Rick Shabi analyzes biblical warnings from the Pharisees, Cain, Korah, and King Saul to show how small, unchecked thoughts of self-will and partial obedience lead to spiritual decay — and how God’s Holy Spirit empowers us to overcome self-deception.