Was Jesus' human nature included in the Trinity? Since Jesus had two natures, one divine and one human, is human nature included in the Trinity, or just the divine nature? What did the early Christians and the traditions have to say about this?
&quot;Is human nature included in the Trinity?&quot; Included it what sense? Everything that is part of God is God, since God is supremely simple. But God is certainly not human nature, although He contains all the perfections of human nature (and more). The Second Person of the Holy Trinity assumed (took up) a human nature.
As St. Thomas says in &quot;Whether the union of the Incarnate Word took place in the Person?&quot;:

The Word of God &quot;did not assume human nature in general, but 'in
atomo'&quot;—that is, in an individual—as Damascene says (De Fide Orth. iii, 11); otherwise, every man would be the Word of God even as Christ was.

In the question &quot;Whether the human nature was united to the Word of God accidentally?&quot; of St. Thomas Aquinas's Summa Theologica, he states:

the Catholic faith, holding the mean between the aforesaid positions,* does not affirm that the union of God and man took place in the essence or nature, nor yet in something accidental [like clothing is to a man], but midway, in a subsistence or hypostasis.
*[heresies on the Incarnation like Nestorianism]

Also, one could argue this way:

God is not a body.
A human is a body and soul.
Therefore, God is not a human.