From Longman Dictionary of Contemporary Englishstand/hold firmstand/hold firmCHANGE YOUR MINDto not change your actions or opinionsstand/hold firm against Jones is urging Christians to stand firm against abortion. → firm
Examples from the Corpus
firm against• Christians have stood firm against a flood of unbelief but have failed to notice its more subtle effects.• On both occasions, Professor Jones stood firm against complaint and censorship.• The compromise was widely viewed as a victory for the president, who had stood firm against Republican demands. 