This article was a very good reminder of the danger of pride and arrogance that can come from knowing the Scriptures and knowing Greek and Hebrew, and theology and church history. D. A. Carson gives example of liberal theologians who know the Greek and the Scriptures but who are atheists and skeptics.
This is a good warning for us who are involved in apologetics and seeking to honestly deal with questions that come up in our evangelism with Muslims, atheists, and other secular skeptics.
It is so important for us to keep our hearts humble and loving and warm, by prayer and worship and devotion and active membership in a local church, and humble service to other people. Let the text of Scripture result in worship, praise to God, thanksgiving, humility, and service to others.