Faith has no merit where human reason supplies the test.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic faith merit
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/19950/pg19950-images.html

Context

“(De Fide, ad Gratian. i) : "Let there be no proofs where faith is required." But faith is required regarding the Resurrection. Therefore proofs are out of place there. Obj. 2: Further, Gregory says (Hom. xxvi) : "Faith has no merit where human reason supplies the test." But it was no part of Christ's office to void the merit of faith. Consequently, it was not for Him to confirm the Resurrection by proofs. Obj. 3: Further, Christ came into the world in order that men might attain beatitude through Him, according to John 10:10:” source