In this Bible/adult study, Mr. Anthony Ally examines how Satan, the father of lies, has sown confusion and division through historical deviations from the apostolic and biblical faith preserved in the Orthodox Church. We explore how both Roman Catholic innovations and Protestant reactions—though often well-intentioned—introduced distortions that obscured the fullness of truth found in the undivided Church. Rooted in Scripture and the patristic witness, this study helps clarify where and how these departures occurred, and how Orthodoxy continues to guard the faith once delivered to the saints. It’s not about condemnation, but illumination—calling all back to the fullness of Christ’s Church.