This short work by Hippolytus of Rome provides an unprecedented opportunity to examine the doctrine of the Trinity through the eyes of the early third-century church. With amazing clarity and simplicity, Hippolytus presents the divine order of God the Father, God the Son, and God the Holy Spirit as revealed in the Scriptures to refute the heresy of Noetus, a man who claimed that the Father, Son and Holy Spirit were all the same Person. This version has been updated into modern language for a new generation to rediscover this captivating work of the early church.