Roger williams was banished from the massachusetts bay colony in 1636 because

The correct answer is:

He was a separatist who believed that the government had no authority over religious matters.

Roger Williams (1603 – 1683) was a Puritan minister, advocate for religious freedom, separation of church and state, one of the first abolitionists.

Williams was banished by the Puritan leaders from the Massachusetts Bay Colony for what was considered dangerous theories, and he founded the Providence Plantations in 1636 as a sanctuary for the liberty of conscience.

to keep us neatruel and not get involved in any wars

he assumed control of treaty negotiations with a hostile power