This program is the third episode in a series of programs that compares and contrasts the lives and the legacies of Constantine the Great and Jesus Christ, and how both have impacted the way we think and the way we live today. This episode will focus on how Constantine embraced Christianity for his political ends and brought about the union of church and state. It explores the consequences of this for subsequent church history and for our modern world. The episode concludes with a challenge to recognise threats to religious freedom and to be able to respond in the right way.