Manichaeism

In the third century, on the banks of the Tigris river, a boy grew up in a community that was simultaneously Jewish and Christian, baptizing daily in living water, holding Moses and Christ in the same hands without apology. That boy became Mani --- prophet, painter, and the most ambitious religious synthesizer in the ancient world. He looked at Zoroaster, Buddha, and Jesus and refused to accept that their light was anything other than the same light, arriving through different doors.