I think this really needs to be said:
Belief in the Deity of Christ is not the chief criterion that makes or breaks orthodoxy.
Simply believing that Jesus is divine isn't the issue--in fact for much of the Church's ancient history most of the heresies it dealt with were from those who actually affirmed that Jesus was divine, God even.
If being able to say, "Jesus Christ is God" is the chief theological issue, then even the Arians were orthodox when they taught that there was the supreme God (the Father) and a junior God (the Son). But it was precisely over the Arian error that the bishops at Nicea put forward their confession of faith, that the Son is the same God with the Father, not a separate God.
No, the orthodox confession of faith is a much bigger, more comprehensive, deeper, richer confession. It's that God has condescended to meet us right here in our broken, fragile humanity.
God didn't just appear human (Docetism)
God didn't just adopt Jesus into divinity (Adoptionism)
God didn't just wear a human mask (Sabellianism)
God didn't veil Himself with humanity, He didn't just inhabit a human person, He didn't produce a new thing unconnected with ourselves, etc.
No. God came, He condescended and met us in weakness, fragility, in all our brokenness, God became man. Never ceasing to be God, never ceasing to be Almighty, never ceasing to be all that He ever has been and ever shall be; and yet He became what we are, as we are, fragile and weak.
The Immortal God died.
The Impassible God suffered.
The Almighty God was beaten and battered.
The Mighty God was subject to men.
God suffered.
God died.
God was crucified.
God was born.
God ate.
God drank.
God spent time with prostitutes.
God spent time with tax collectors.
God spent time with lepers.
God preached to the poor.
God preached to the weak.
God became poor.
God became weak.
God became victim.
God was all this, for our sake. And it's our very salvation.
-CryptoLutheran