It is important for an Episcopalian to know about the Anglican Church, the Reformation, and Thomas Cranmer. Knowing which historical actions caused certain beliefs is essential for challenging our views according to the Bible.
I can’t think of any issues today that the church has not already dealt with in its past whether that be grace, politics, denominations, ethics, pastoral ministry, etc.
Though God’s people may err in certain doctrinal matters, certain teachings like the Trinity, the deity of Christ, the resurrection, and the second coming are always held as truth by all true Christians.
We must interpret the Bible as we bounce ideas and interpretations off one another.