What is the purpose of the first paragraph of this section of the iroquois constitution?

to describe the meaning of the shell strings
to describe the consequences of disobeying one’s tribe
to describe the traditions of the lords
to describe the history of each tribe in the five nations

no guessing ! i am giving a generous amount of points for a good answer.
( answer and rationale )

to describe the meaning of the shell strings

In this passage, the Iroquois Constitution specifically says "a large bunch of shell stringsshall symbolize". It then goes on to specifically say what the shells symbolize - the coming together of the nations. The other options are simply not valid. This passage does not tell us anything about consequences or the history of each tribe. While it does mention the different Lords, it doesn't say what their traditions are.

themselves

an intensive pronoun is a pronoun that ends in self or selves, such as himself, herself, themselves, yourself, ourselves. since band members is a third person plural, the correct intensive pronoun would be themselves. if the band was talked about as a collective noun, itself would be the appropriate intensive pronoun. intensive pronouns are used to add emphasis to the noun it's modifying which is why it directly follows it.