Vincent Stewart

“Cheap grace is the preaching of forgiveness without requiring repentance, baptism without church discipline, Communion without confession, absolution without personal confession. Cheap grace is grace without discipleship, grace without the cross, grace without Jesus Christ, living and incarnate.”
― Dietrich Bonhoeffer, The Cost of Discipleship

“The unbiblical idea of "spirituality" is that the truly "spiritual" man is the person who is sort of "non-physical," who doesn't get involved in "earthly" things, who doesn't work very much or think very hard, and who spends most of his time meditating about how he'd rather be in heaven. As long as he's on earth, though, he has one main duty in life: Get stepped on for Jesus. The "spiritual" man, in this view, is a wimp. A Loser. But at least he's a Good Loser.”
― David Chilton, Paradise Restored: A Biblical Theology of Dominion

“I have great hopes that we shall learn in due time how to emotionalise and mythologise their science to such an extent that what is, in effect, a belief in us (though not under that name) will creep in while the human mind remains closed to belief in the Enemy.”
― C.S. Lewis, The Screwtape Letters

“When we engage in the quest to understand God, it is theology. When our quest is limited to understanding how people react to theology, it is religion.”
― R.C. Sproul, What is Reformed Theology?: Understanding the Basics