What is total depravity according to Reformed theology?

Total depravity is a key tenet within Reformed theology, suggesting that every aspect of human nature is corrupted by sin—mind, will, and emotions. Consequently, individuals are unable to seek God or do good without divine intervention. The sermon highlights the total depravity of humanity in reflecting on Herod's wickedness and the inherent sinful nature of mankind. This foundational understanding emphasizes that salvation is entirely by God's grace and that He must initiate any change in the human heart. As articulated in Ephesians 2:1, 'And you hath he quickened, who were dead in trespasses and sins,' underscoring our need for regeneration by His Spirit to come to faith in Christ.