The question of Biblical literacy came up in a recent Facebook conversation, and it is a concern for many of us here. I wonder if we are not a victim of our own success, in a way. In the earlier years of the RM, and in the first half of the last century, many Americans were well-read in the Scriptures. Theological liberalism began to attack the Bible, but many Christians doubled-down on the Bible during that time, and Bible teaching demonstrated to be very important, by its frequency: Sunday School, Biblical preaching, Sunday night, Wednesday night, etc.
“In other words, the non-Christian needs the truth of the Christian religion in order to attack it. As a child needs to sit on the lap of its father in order to slap the father’s face, so the unbeliever, as a creature, needs God the Creator and providential controller of the universe in order to oppose this God. Without this God, the place on which he stands does not exist. He cannot stand in a vacuum.”
Cornelius Van Til, Essays on Christian Education (The Presbyterian and Reformed Publishing Company: Phillipsburg, NJ, 1979).