This book investigates whether the theological movement known as Grammatical Thomism can legitimately claim to inherit the philosophical methods of Ludwig Wittgenstein and the theological framework of Thomas Aquinas. Stephen Mulhall, a professor of philosophy, examines the intersection of linguistic analysis and religious discourse. He evaluates the assertion that religious language is inherently nonsensical due to the ineffability of God, contrasting this view with the rigorous logical structures proposed by Wittgenstein and the classical theological tradition of Aquinas.

Scholars and students of philosophy of religion frequently note the technical density of the prose, which requires a strong background in both analytic philosophy and scholastic theology. Experts highlight this as a significant contribution to the debate regarding the limits of language in religious expression.