n.
Central Christian doctrine that God became man in the form of Jesus , the son of God and the second person of the Holy Trinity .
In Jesus the divine and human nature are joined but neither is changed or diminished. This difficult doctrine gave rise to a variety of heresies , some denying Jesus's divine nature, others his human nature. For orthodox believers the conflict was settled at the Councils of Nicaea (AD 325) and Chalcedon (AD 451).