The body of Jesus Christ was conceived of The Holy Spirit in the womb of Mary.He did have from the beginning in heaven. God as Spirit can't interact with the physical world. That's why there was The WORD with God and The WORD was God.
The OT fathers have seen God face to face with God. Yet God as Spirit, no one has seen nor can see.
The Son of God in NT is the same One Who appeared as The Messenger and spoke as The Father to Israel.
Read Gen 1:3 and see Apostle Paul's interpretation of the same in 2Cor 4:6.
He has been with the Body as the firstborn of old creation:
Col 1:15 who is the likeness of the invisible Elohim, the first-born of all creation.
He is now firstborn of new creation
Col 1:18 And He is the Head of the body, the assembly, who is the beginning, the first-born from the dead, that He might become the One who is first in all.
That's why He refers Himself as the Son of Man.
Mary had nothing to do with the body of Christ as His body was prepared from heaven. That's He could be the Lamb without spot. His blood was God's own. He the bread that came down from heaven - the bread that we eat for eternal life.
He came in likeness of sinful flesh but not exactness. That's why He wasn't called The Son of Man by the virtue of His birth through Mary but He was called The Christ, The Son of the living God.
YHWH is a Man of war:
Exod 15: 3 The LORD is a man of war: the LORD is his name.
Isaiah 42:13 The LORD shall go forth as a mighty man, he shall stir up jealousy like a man of war: he shall cry, yea, roar; he shall prevail against his enemies.
EZK 1:26 And above the firmament that was over their heads was the likeness of a throne, as the appearance of a sapphire stone: and upon the likeness of the throne was the likeness as the appearance of a man above upon it.
He had NO body prior to that time.