This [Magna Carta] has been forced from the King. It constitutes an insult to the Holy See, a serious weakening of the royal power, a disgrace to the English nation, a danger to all Christendom, since this civil war obstructs the crusade. Therefore?we condemn the charter and forbid the King to keep it, or the barons and their supporters to make him do so, on pain of excommunication.
"Magna Carta is the Law: Let the King look out."So it has always been with tyrants among our own people: when the King was tyrant, let him look out. And it has always been the same, and will be the same, whether the tyrant be the Barons, whether the tyrant be the Church, whether he be demagogue or dictator — let them look out.stanley baldwin
[Magna Carta provided] “a system of checks and balances which would accord the monarchy its necessary strength, but would prevent its perversion by a tyrant or a fool.”