No person is to vaunt himself above others or find fault with the efforts of others while lauding his own.
 Martin Luther, Commentary on the Epistle to the Galatians (1535). copy citation

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Author Martin Luther
Source Commentary on the Epistle to the Galatians
Topic effort fault
Date 1535
Language English
Reference
Note Translated by Theodore Graebner
Weblink http://www.gutenberg.org/files/1549/1549-h/1549-h.htm

Context

“New errors must appear without measure and without end. For the avoidance of discord Paul lays down the principle: "Let every person do his duty in the station of life into which God has called him. No person is to vaunt himself above others or find fault with the efforts of others while lauding his own. Let everybody serve in love." It is not an easy matter to teach faith without works, and still to require works. Unless the ministers of Christ are wise in handling the mysteries of God and rightly divide the word, faith and good works may easily be confused.” source