John Piper Quotes
The Bible is the ultimate authority and infallible, not the pastor and not the elders. And it doesn't mean that you believe everything he says without examining it.
Piper, John. "Examine All Things." Desiring God, Desiring God Foundation.
Priests at the time were mostly uneducated. They would tend to make up their own Biblical stories that the people would prefer rather than the official church versions. The bishops wanted this practice stopped.
John Stephen Piper is a theologian, pastor, and chancellor of Bethlehem College & Seminary in Minneapolis, Minnesota. Piper taught Biblical Studies at Bethel University for six years (1974-1980), before serving as Pastor for Preaching and Vision of Bethlehem Baptist Church in Minneapolis for 33 years (1980-2013).