The prophecy of Jesus in Isaiah 9 seems to be saying that the Son of God is the Father and the Spirit. I say this because he is called “Everlasting Father” and “Wonderful Counselor.” We know that the Spirit is the Counselor from John 14:26. But how can this be?
Let’s first look at the whole passage.
For to us a child is born,
to us a son is given,
and the government will be on his shoulders.
And he will be called
Wonderful Counselor, Mighty God,
Everlasting Father, Prince of Peace.
Of the greatness of his government and peace
there will be no end.
He will reign on David’s throne
and over his kingdom,
establishing and upholding it
with justice and righteousness
from that time on and forever.
The zeal of the Lord Almighty
will accomplish this (Isaiah 9:6-7).
It may be tempting for Christians to read Trinitarian concerns into this Old Testament passage, but Trinity is not the topic of Isaiah 9.
Kings in the ancient world were often viewed—and described—as “fathers” to their subjects. Solomon, whose wisdom was legendary, is an example of a “wonderful counselor.”
So, as many have concluded, the verse highlights Jesus's divine nature (Mighty God) and role, not the Triune relationships. A misreading of the passage easily leads one into the heresy of modalism.
Oneness Pentecostalism has slipped into this heretical, non-Trinitarian thinking.
For more, take a look at the Crossway article.
