Anne Hutchinson was banished from Massachusetts and excommunicated from the Puritan church in 1637 because?

Answer 1

Her opponents accused her of antinomianism--the view that God's grace has freed the Christian from the need to observe established moral precepts.

Her criticism of the Massachusetts Puritans for what she considered to be their narrowly legalistic concept of morality and her protests against the authority of the clergy were at first widely supported by Bostonians. John Winthrop, however, opposed her, and she lost much of her support after he won election as governor. She was tried by the General Court chiefly for "traducing the ministers," was convicted in 1637, and was sentenced to banishment. For a time in 1637-38 she was held in custody at the house of Joseph Weld, marshal of Roxbury, Mass. Refusing to recant, she was then tried before the Boston Church and formally excommunicated.

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Answer 2

She was excommunicated because she was a woman who was preaching. She was an unauthorized Puritan preacher. Too many people wanted to hear her preach and those in charge did not like what she was doing.

Answer 3

she was branded a heretic because of her religious belief.