The answer is People vote for representatives who will make decision on their behalf. This method became the basis of modern democratic government that we use today. In our current system, the people could not directly vote for the regulations. But, the people had the power to appoint the person (representatives) that held their interest.
This was a big deal because it introduced the concepts of limited government, rule of law, and due process. It also helped create the nation's Parliament (kind of like Congress in the U.S.). The Magna Carta was a government document that limited the power of the king of England and protected the rights of the nobility.
We perceive that a great breach has been made in the moral and physical systems by the introduction of moral and physical evil; how or why, we know not; so, however, it is, and it certainly seems proper that this breach should be closed and order restored.
That men should pray and fight for their own freedom, and yet keep others in slavery, is certainly acting a very inconsistent, as well as unjust and, perhaps, impious part.
It is much to be wished that slavery may be abolished. The honour of the States, as well as justice and humanity, in my opinion, loudly call upon them to emancipate these unhappy people. To contend for our own liberty, and to deny that blessing to others, involves an inconsistency not to be excused.
It is important because in 1836, during the Texas Revolution, somewhere around 200 rebels including Davy Crockett and James Bowie held out against 1,800 Mexican Soldiers under the command of Santa Anna, the Mexican dictator at the time, for thirteen days.