Augustine's defense of God's ability to choose

"It is not for us, Augustine suggests, to use reason to salvage God's honor. Free will is not worth defending if such defense compromises God's ability to choose whom, how, or when he will, and relegates grace to the peripheries of salvational history. God's apparent injustice must be subsumed by human capitulation to the mysterious workings of the divine. So our complexity in the absence of any theodicy becomes a sign both of our abject humility and of God's radically other sovereignty."

-- When Souls Had Wings, Pre-Mortal Existence in Western Thought, Terryl L. Givens, p. 119.