So much error has occurred due to the Council of Ephesus' ruling on this as Rome has completely abused this decision.
Scripture never refers to Mary as the "Mother of God".
Rome has again departed from Scripture in favor of "tradition".
So what?
Rome has again departed from Scripture in favor of "tradition".2 Thessalonians 2:15 - Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.