Page "Arianism" Paragraph 12

By 325, the controversy had become significant enough that the Emperor Constantine called an assembly of bishops, the First Council of Nicaea, which condemned Arius ' doctrine and formulated the original Nicene Creed of 325.

The Nicene Creed's central term, used to describe the relationship between the Father and the Son, is Homoousios (), or Consubstantiality, meaning " of the same substance " or " of one being ".

( The Athanasian Creed is less often used but is a more overtly anti-Arian statement on the Trinity.