The Logos doctrine was dangerous because it hypostasized the Son beside God, and the Spirit a God beside all of them. A man named Theodotus, a craftsman from Rome, thought that Jesus was a man upon whom the Divine Spirit came in baptism, giving him the power of his Messianic vocation. But this did not make him God.

Therefore these people from the school of Theodotus were very much interested – as were many later, especially Protestants of the 19th century – in those passages of the Gospel dealing with Jesus as man. There is perhaps a connection (Theodotus) and a group in Asia Minor called the Alogoi, who denied the doctrine of the Logos.