Tertullian of Carthage (160-220AD) was a second century Roman lawyer who converted to Christianity in North Africa . Tertullian wrote extensively about Christian life and faith. He later left the Church to join the rigorist Montanists, and his writings reflect his transition from Orthodoxy to sectarianism.
http://archive.org/download/OrthodoxChurchHistory/5Tertullian-2006-A_WEB.mp3