Unified Christology, and rejected the Arian view of Non-trinitarianism
In the lineage of Pulcheria.
Baptism emerged in this time period, as a response to the depictions of Jesus' baptism in the synoptic gospels.
The high Johannine Chrostology presents Jesus, differently from the synoptic gospels, in so far as, presenting a highly exalted version of Christ, and consistently reinforcing his place as the "Eternal Word or Logos of God made flesh" in grace and truth.
The Council makes the trinatrian view of "one essence in three persons" canon. A view of the essence held by Gregory of Nyssa and Basil
In this council, they issued the Chalcedon Definiton relating to the nature of Christ, claiming that He had two natures in one person and hypostasis.