A lawyer who loses in the High Court can take consolation in the knowledge that he or she can always appeal to a higher court. But the Supreme Court has the final word. When he was a barrister, the future Chief Justice Tom Finlay once stood up and told the court it didn’t have jurisdiction to decide a certain point. One of the judges, Cecil Lavery, came back with an immediate retort. ‘Mr Finlay,’ he said, ‘we are the Supreme Court, and under God we can do anything.’
Mac Cormaic, Ruadhán. The Supreme Court (p. 9). Penguin Books Ltd. Kindle Edition.
Thomas Aloysius Finlay (17 September 1922 – 3 December 2017) was an Irish judge, politician and barrister who served as Chief Justice of Ireland and a Justice of the Supreme Court from 1985 to 1994, President of the High Court from 1974 to 1985 and Judge of the High Court from 1971 to 1985. He served as a Teachta Dála (TD) for the Dublin South-Central constituency from 1954 to 1957https://en.wikipedia.org/wiki/Thomas_Finlay_(judge)