This small book, first published in 1963, can serve as an entry point to von Balthasar's vast and sometimes intimidating oeuvre.
Its first two chapters critique the cosmological and anthropological arguments for God's existence. Because the author presumes a more than passing familiarity with European philosophy, this section may be tough sledding for some. But keep reading. The bulk of the book is an accessible exploration of the primacy of love in Christian faith and life.
Essentially, Von Balthasar seeks to remind modern Christians that God's absolute love in Jesus Christ is the source, center, means, and goal of the Christian faith. In light of this love, the dogmas of Christian orthodoxy are seen not as distant and restrictive abstractions but as liberating preconditions for human fulfillment.
There is inspiration as well as intellectual challenge here. Love Alone is Credible asks its readers to contemplate anew the heart of the Christian faith, and to venture forth transformed.