Sabellianism: Modalism Revived in Oneness Pentecostalism. False teachings rarely die; they recycle themselves in new clothes. What the early church called Sabellianism or Modalism is now repackaged in modern Pentecostal Oneness movements. Both reject the biblical Trinity, claiming that Father, Son, and Spirit are not distinct Persons but only different manifestations of the one God. This distortion robs the gospel of its depth and misrepresents the God who saves.