One reason many settlers first came to the British colonies was to escape the religious discrimination/persecution they had experienced in Europe. This situation led the authors of the Bill of Rights to establish

Freedom of religion is considered by many people and most nations to be a fundamental human right. In a country with a state religion, freedom of religion is generally considered to mean that the government permits religious practices of other sects besides the state religion, and does not persecute believers in other faiths. Freedom of belief is different. It allows the right to believe what a person, group or religion wishes, but it does not necessarily allow the right to practice the religion or belief openly and outwardly in a public manner, a central facet of religious freedom.

b. second continental congress

i really really really really really really dont know