Christadelphians are a Bible focused Christian movement that seeks to model faith and practice after the early church. They emphasise careful Scripture reading, adult baptism by immersion, and weekly remembrance of Jesus’ death. However, Christadelphian teaching departs from historic Christianity on several core issues, including the nature of Jesus Christ, the Holy Spirit, and the meaning of salvation. This article offers a calm, Bible based explanation of who Christadelphians are, what they believe, where their teachings diverge from the gospel, and how Christians can engage thoughtfully and graciously using Self Discovery Bible Study (SOS) principles.