Before the Incarnation, the Holy Trinity was:
God the Father, God the Word, God the Holy Spirit.
# - God the Holy Spirit formed Jesus’ fetus in Mary’s womb.
Jesus was called “the Son of God” because the Holy Spirit was Jesus’ “father”
(“He played the role of” Jesus’ father).
# - God the Word became flesh (Jesus).
So, can we say the Word was Jesus, and Jesus was the Word?
Jesus Christ was “fully man” via God the Holy Spirit.
Jesus Christ was “fully God” via God the Word.
Several NT verses say Jesus Christ came down from heaven.
On the surface, this sounds ridiculous,
but it is referring to the God part of Jesus (God the Word).
So, I'd say there are a few issues with what you've said here. Some of this may have to do with semantics. Meaning that your intent may have been somewhat different than what the words you used managed to communicate. With that in mind...
First, the Spirit did not act as “Jesus’ father.” Scripture never attributes paternity for the Incarnation to the Holy Spirit as a distinct personal father. The Spirit’s role was instrumental, not paternal: He “overshadowed” Mary (Luke 1:35). The conception was by divine power, but Jesus is called
Son of God because the eternal Word Himself took on flesh, not because the Spirit became His father. The Father remained the Father.
Secondly, the statement, “Jesus was fully man via the Holy Spirit, fully God via the Word,” divides the natures according to agents, as if each Person contributed a separate ingredient. That’s not biblical nor even orthodox Christianity. The Word (the second Person)
became flesh; His human nature came through Mary, not “via the Spirit.” The Spirit caused conception, yet the humanity derived from Mary. To assign Jesus’ humanity to the Spirit is to confuse agency with source.
Next, if the Spirit were Jesus’ father, then the Father is displaced or duplicated. The Trinitarian relations are eternal: Father, Son, and Spirit. They are not roles that shift during the Incarnation. The Son did not come into being because the Spirit fathered Him; He eternally existed and entered the world by taking human nature.
Yes, the Word was Jesus and Jesus was (is) the Word, but only after the Incarnation. The Person of the Word took on human nature; the humanity did not pre-exist as “Jesus.” To speak as though “Jesus” existed in heaven before being conceived collapses the distinction between the pre-incarnate Word and the incarnate God-man. Scripture says the
Word came down from heaven, not the human body.
You interpret “came down” as “the God part of Jesus,” as though Jesus were two persons glued together, one human and one divine. That is a form of Nestorian dualism. The correct understanding is that
the one Person, the eternal Son, came from heaven and assumed human nature. The descent refers to His divine origin, not to a detachable “God part.”
In short, your post confuses the roles within the Trinity, treats the Spirit as Jesus’ father, divides Christ’s natures by Person, and implies two fathers and two persons in Christ. The biblical and coherent formulation is simple...
- The Father sent the Son (the eternal Word).
- The Holy Spirit caused the conception in Mary.
- The Word Himself became flesh, truly God and truly man, one Person forever.
- In some very important, but not well understood sense, to discuss Father, Son and Spirit is to speak of the same singular God and, as such, it was THE God Himself who became a man and died for our sin and rose from the dead three days later.
