In The Trinity, Clark points out that Platonic Realism helps to answer many questions regarding the doctrine of the Trinity. However, Clark’s solutions also raise additional questions. In the quote below, Hodge attacks the view Clark holds and Clark makes a very interesting response.
“…Hodge is violently opposed to realism. In fact his argument against realism begins two pages back. A few paragraphs ago, I urged several objections against Hodge’s arguments. Maybe one more is allowable and sufficient:
Realism…subverts the doctrine of the Trinity in so far that it makes the Father, Son, and Spirit one God only in the sense in which all men are one man. The persons of the Trinity are one God, because they are one in essence. The answers which Trinitarian realists give to this objection are unsatisfactory because they assume the divisibility, and consequently the materiality of the Spirit.
This quotation consists of three sentences. The first sentence is doubtful. Hodge does not cite any author. Naturally the Persons of the Trinity are one in the sense that all men are one, and all horses; but it ides not follow that the three persons are one in only that sense. For example, three human beings have three wills; but the three Persons have but one will. [emphasis mine] Hence the diversification of human beings is not identical to the diversification of the Persons, for which reason we cannot assert that the two unities are completely identical.” (The Atonement, 117)