50+ John Piper Quotes On The Cross. The cross is foolishness to the natural man, and so the meaning of marriage is foolishness to the natural man." — john piper quotes from quotefancy.com. Liked that point enough to title his message "boasting only in the cross. Making the name of jesus known in . Sarah eekhoff zylstra writes about the day john piper gave his. Join john piper, david platt, and others for cross con21. Here are 38 of our favorite john piper quotes from his book don't waste your. "life is wasted if we do not grasp the glory of the cross, . "life is wasted if we do not grasp the glory of the cross, . The cross is not a mere event in history; We gather to consider the most loving cause in the universe: