The doctrines or tenets of Sabellius. See Sabellian, n.
God is one being, one person, who successively takes on three different forms or manifestations (from Sabelius, 3rd. cent).
Another term for modalism or modalistic monarchianism. It is derived from Sabellius, the most prominent exponent of the doctrine in ancient church history. Sabellius preached in Rome around 215 A.D. The doctrine is basically equivalent to modern Oneness.