By their fruit you will recognize them. Not everyone who says to me 'Lord, Lord' will enter the Kingdom of Heaven, but only he who does the will of my father who is in heaven. Protestants accept most of the decisions of the historical church councils, but do not believe they were without error. They base this on the fact that church councils, particularly the last two in Nicea, contradicted each other on the issue of icons. The one in 754 A.D. forbid the use of icons, while the one in 787 A.D. required them to be used.
Protestants accordingly accept church councils only when they agree with the teaching of the Bible.
They base this on the fact that often the church fathers disagreed with one another. Protestants do not believe there is any special power in the relics of saints, because they believe the Bible does not teach this. This miracle after Elisha's death exactly doubled the number of recorded miracles of Elijah. Protestants believe there is no other scripture teaching that Christians should venerate the bones of the dead, so they do not. Protestant ministers do not wear robes because neither Jesus nor the apostles wore special clothes, and the New Testament does not teach us to wear them.