I quote...

“I am much afraid that schools will prove to be the great gates of hell unless they diligently labor in explaining the Holy Scriptures, engraving them in the hearts of youth.” - Martin Luther

“... when the manners of a nation are pure, when true religion and internal principles maintain their vigor, the attempts of the most powerful enemies to oppress them are commonly baffled and disappointed. This will be found equally certain, whether we consider the great principles of God's moral government, or the operation and influence of natural causes.” - John Witherspoon, “The Dominion of Providence over the Passions of Men” 1776