Man and Sin by Piet Schoonenberg (1964) 2.2 CX
[Models? Let me look at models again.
Model three is of the One Triune God.
God includes all three categories of existence: thirdness, secondness, and firstness.
In my version of the model, God Recognizes Himself.
‘God is One’ is the Possibility of Recognition. The realm of possibility is monadic. There is only one.
Actuality is dyadic. God is Father and Son. God is the One Who Recognizes and the One Who Is Recognized. Both belong in the realm of actuality. The realm of actuality is dyadic.
Finally, a third person who is categorically different, the Holy Spirit3, brings the Father2 and the Son2 into relation with ‘the Possibility of Recognition1’. Normal contexts are triadic.]