The character of _Magna Carta_ is very noticeable; it is rather unsystematic in shape, being mainly composed of a list of grievances which are to be remedied. It does not purport to be a full statement of the English constitution, but only a recapitulation of the points on which the king had violated it. But it is not merely a check on John's evil doings, but a solemn engagement between the king, the barons, the Church, and the people that each shall respect the rights of the other. Wherever it is stated that the king is to abstain from using any particular malpractice against his vassals, it is also added that his vassals will on their part never use that same form of oppression against their own tenants. Thus it guarantees the rights of the small man against the great, no less than those of the great man against the king. It is in this respect that the Charter differs from many grants of privileges exacted by foreign nobles from foreign kings. Abroad the barons often curbed the royal power, but they did it for their own selfish ends alone, not for the common good of the nation. [Sidenote: =John's faithlessness.--Attitude of the Pope.=] John had signed the Charter in a moment of fear and depression of spirits. He did not intend to observe it a moment longer than he could help, and called its provisions "mere foolishness." When the barons dispersed, he violated his engagements by gathering another great horde of mercenaries, and sent to Rome to his suzerain Innocent III., to get absolution from the oath he had sworn. As he had once utilized the nation against the Pope, so he would now utilize the Pope against the nation. [Sidenote: =Civil war.=] Innocent, who cared nothing for the rights or wrongs of England, resolved to support his obedient vassal. He censured Archbishop Langton for siding with the barons, and summoned him to Rome to answer for his conduct. He freed the king from his oath, and he swore that he would excommunicate any man who took arms against him. But John had taught his barons to despise ecclesiastical thunders. They flew to arms, and war broke out. The king at first had the advantage; his mercenaries were all at hand, and the barons were scattered and unorganized. The king took Rochester, and hung the garrison who held out against him, and then started northward, harrying the land with fire and sword as far as Berwick. [Sidenote: =Lewis of France elected king by the barons.=]