on moral grounds

on moral grounds

Due to reasons stemming from or relating to one's own personal moral or ethical principles. I wish you all the best, but on moral grounds I cannot be associated with your campaign any longer. The religious group has made a formal complaint to the broadcast regulator on moral grounds, claiming that the program in question promotes violence against members of their faith.
See also: ground, moral, on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

on moral grounds

considering reasons of morality. He complained about the television program on moral gounds. There was too much ridicule of his religion.
See also: ground, moral, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also:
References in periodicals archive ?
Many states also sanitize American history in order to foster fealty to the American way: the Texas Education Code provides that "textbooks should promote democracy, patriotism, and the free enterprise system." The New York Board of Regents was found to have falsified, on moral grounds, most of the literary texts used in its exams; here classic literature was bowdlerized in the interests of political correctness.