I have posted a PDF of my Nova et Vetera article on the Social Analogy for the Trinity, or rather for the “I-Thou” argument for the Trinity. It appears on my Academia Web page.
The first page of the article I paste below:
Nova et Vetera, English Edition, Vol. 15, No. 1 (2017): 113–159
The “I-Thou” Argument for the Trinity:Wherefore Art Thou?
Christopher J. Malloy
The following thesis typifies a recent current of thought in Trinitarian theology: “The living God can . . . be thought of only as Father and Son, while a non-trinitarian, purely monotheisticGod would in fact have to be declared dead.” Such an opinion, it would seem, would have struck twentieth-century Jewish thinker Martin Buber as false. After all, the central message of the Shema is “Hear, O Israel: The Lord our God is one Lord” (Deut 6:4, RSV). Buber did not read this prayer as Trinitarian, but he did have “monotheistic” faith in the living God. Were he alive, Buber might register surprise that the author of the thesis is a major proponent of ecumenical and inter-religious dialogue, Walter Cardinal Kasper. Further, Kasper argues to the thesis by way of a reformulation of Buber’s own claim: “An I without a Thou is unthinkable.” Did Buber simply fail to grasp the universality of his own insight and so apply it to the God beyond the ﬁrmament?Or did Kasper overreach?Kasper presents an iteration of what I call the “I-Thou” argument for the Trinity. The argument is almost always attended by the so-called “Social Analogy,” according to which God is contemplated through the iconic similitude of a community of human persons….