Unintentionally, perhaps, liberal Protestantism has contributed to enhance the authority of the Pope by eroding confidence in the authority of the Bible. One might say that to the extent that Protestantism weakens the authority of the Bible for defining Christian beliefs and practices, to that same extent it strengthens the authority of the Pope.
The reason is simple. Most Christians resent tyranny but welcome the voice of authority, certainty and assurance. They want to hear from their church leaders, “This is the way, walk you in it!” When they fail to hear this voice of authority from the Scripture as proclaimed by their pastors, they become attracted to the Pope who claims to offer the infallible interpretation of Scripture. This climate offers to the Pope an unprecedented opportunity to fill the void of moral and religious relativism created by liberal Protestant churches by presenting himself as the voice of certainty.