It sounds like it means to ask God for forgiveness.
Regarding the Magna Carta, this statement is false:
A.) THE DOCUMENT REQUIRED TRIAL BY A JURY OF ONE'S PEERS.
The Magna Carta, meaning "The Great Charter, was officially named Magna Carta Libertatum. It was a document issued by King John of England. It is very controversial because it states that everybody is subjected to the law. Nobody is exempted. Even the royals are subject to the law.