There are a variety of current-day and historical doctrines and movements which are collectively referred to as Non-Trinitarian. Non-trinitarian beliefs vary greatly, but they are all considered to be contradictory to the traditionally orthodox teachings of Trinitarian doctrine.
Some common non-trinitarian doctrines are:
- Arianism - Jesus is the first and greatest creation of the Father.
- Adoptionism - Jesus was a human being who was adopted by the Father at some point after birth (typically at His baptism).
- Sabellianism (Modalism) - The Father, the Son, and the Holy Spirit are three different manifestations of the same being.
- Socinianism - Jesus was the Son of God from birth, but did not exist before He was born.
Some popular Non-Trinitarian denominations and movements are: