Man merits, inasmuch as he does what he ought, by his free-will
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic merit
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17897/pg17897-images.html

Context

“Hence man's merit with God only exists on the presupposition of the Divine ordination, so that man obtains from God, as a reward of his operation, what God gave him the power of operation for, even as natural things by their proper movements and operations obtain that to which they were ordained by God; differently, indeed, since the rational creature moves itself to act by its free-will, hence its action has the character of merit, which is not so in other creatures. Reply Obj. 1: Man merits, inasmuch as he does what he ought, by his free-will; otherwise the act of justice whereby anyone discharges a debt would not be meritorious. Reply Obj. 2: God seeks from our goods not profit, but glory, i.e. the manifestation of His goodness; even as He seeks it also in His own works.” source