Where to Find Grace in Marriage

Anna and I have been reading John Piper's recent book on marriage, entitled This Momentary Marriage.  The premise of the book is simple:  that marriage is the doing of God and is meant to be the display of God.

Piper looks to two amazing descriptions of marriage in the Scriptures to develop this thesis.  The first is in Matthew 19, where Jesus reaches back to quote and explain the first statement about marriage in Genesis 2.

"[Jesus:] answered, 'Have you not read that he who created them from...