In 325 CE, the Council of Nicaea produced the Nicene Creed, and primarily dealt with the Arian controversy, which opposed the idea that Jesus Christ, as the Son of God, was eternally generated.

These Semi-Arian bishops substituted the term "homoousion" in the Nicene Creed with the term "homoiousion", meaning "of like substance". They hoped that this compromise would be acceptable to both ...