Prolegomena: The Primary Matters – Our Battle Against Indwelling Sin

This session serves as the introduction to a 17-week Sunday School series exploring the persistent and deceptive nature of sin within the believer . Drawing on Chris Lundgaard’s The Enemy Within and John Owen’s The Mortification of Sin, the lesson establishes three foundational "anchors" for the study: original sin, the steadfast love of God (hesed), and the assurance of salvation . The teaching emphasizes that while indwelling sin is a constant enemy seeking to diminish joy, Christians must exa