John Piper – select quotes

Truth without emotion produces dead orthodoxy and a church full (or half full) of artificial admirers (like people who write generic anniversary cards for a living). Emotion without truth produces empty frenzy and cultivates shallow people who refuse the disciplines of rigorous thought. But true worship comes from people who are deeply emotional and who love deep and sound doctrine. Strong affections from God rooted in truth are the bone and marrow of biblical worship.”
~ John Piper, in Desiring God (Sisters, OR: Multnomah, 1986), page 76