“[W]hen a man is once converted to God, his progress in holiness will be much in accordance with his own diligence in the use of God’s appointed means. And I assert confidently that the principal means by which most believers have become great in the church of Christ is the habit of diligent private prayer.”
~Ryle (1816-1900), J.C. (2012-07-02). A Call to Prayer – with Study Guide (Chapel Library) (Kindle Locations 278-280). Chapel Library. Kindle Edition.