The Christian Institute said it was furious at claims Communities Secretary Sajid Javid wants a loyalty pledge for civil servants, police and public sector workers to be little more than a promise to respect equal rights.
The fears follow meeting his officials have had with interest groups in recent weeks.
The row comes just days after Theresa May – a vicar's daughter – slammed Cadbury and National Trust for omitting 'Easter' from egg hunt adverts.
