How Can We Speak Positively About God?

A facebook discussion: is God-talk “either unintelligible or [so] underdetermined [so that] natural theology is left doubtful”?

The question of if there is a middle ground between univocity and equivocity, which would enable us to predicate a perfection [being] formally of God, is metaphysical (and central to this conversation). IS there some "positive content" in creatures that can likewise be verified in God?

Pointing to language or logic doesn't indicate anything. The question concerns what reality there is to express, utter, rationalize: a system of logic or language will take a metaphysics for granted before starting.

Thomists like Maritain, Lagrange say [read Aquinas & the commentators as saying] there IS something attained in physical things, something which could be attained in ANY creature, that is "formally verified" in God: being (and its transcendental modes).

The fact that being stands to created essences as act to potency, an excess over their finitude, a "contingent predicate"; the fact that it is "the form of all forms, act of all acts" is why we can apply it to God despite finding it in creatures [with which it is not identical]. The reason we can argue by causal analogy of proportion to God is this internally & essentially diverse nature of being over and above any instance. Proportionality is just this internal diversity of being.

These sorts of criticisms in the article seem to take for granted that all prediction is univocal. Thomism & the analogy of proportionality work with an internally diverse or transcendental object. Its discourse on God therefore neither begs question (it starts from being in creatures, not God, whom it causally demonstrates afterwards) nor is incoherent (the above describes exactly why we can speak positively of God).

Meanwhile the very internal diversity of being (into different essential ratios composed of act/potency) that allows us to speak about God is, thomists would argue, a necessary condition for explaining (against parmenidean monism) the reality of multiplicity, limitation, change.