St. Augustine: "Understanding is the reward of faith"

"FOR understanding is the reward of faith. Therefore do not seek to understand in order to believe, but believe that you may understand."

~St. Augustine: Tractate 29, 6, in Tractates (Lectures) on the Gospel of John. 

Allegory of Faith, by Moretto da Brescia;
Oil on panel, c. 1540; The Hermitage, St. Petersburg.