Oneness Pentecostals outright reject the Triune nature of God and instead take a Unitarian position, namely that God is not only singular in being (Monotheism) but also singular in person. Trinitarianism however stands in direct contrast to Unitarianism and defines God as singular in being yet three in persons, Father, Son and Holy Spirit. This teaching seeks to give a defence of the doctrine of the Trinity over and against that of Modalism.
Download notes (pdf)
http://traffic.libsyn.com/bethesdashalom/5c_Oneness_Pentecostals_Pt3.pdf
