From Longman Dictionary of Contemporary Englishthe foldthe foldPMEMBERthe group of people that you belong to and share the same beliefs and ideas asreturn to/come back into the fold The Church will welcome him back into the fold.stray from/leave the fold a former advocate of free market economics who had strayed from the fold → fold
Examples from the Corpus
stray from/leave the fold• Romley strayed from the fold only recently, daring to oppose Symington on juvenile-justice reform. 