The Enlightenment and its spawning of historical-critical methodologies—particularly that aspect of the system called "Source Criticism"—marked the beginning of the end of the priority of the Gospel of Matthew.
How Can Doubts Destroy Our Faith?
If we knew what was happening to our body, slowly, over time, we would take appropriate actions to avoid exposing ourselves to a dangerous bacterium, virus, or any other microorganisms. Of course, this was all leading to the importance of being and remaining “healthy in faith.” (Titus 2:2) Are we like the young person, who believes nothing bad physically can happen to them?