John Piper Tells Us Why We Should Memorize Scripture

My son, keep my words and treasure up my commandments with you; keep my commandments and live; keep my teaching as the apple of your eye; bind them on your fingers; write them on the tablet of your heart. Say to wisdom, "You are my sister," and call insight your intimate friend (Proverbs 7:1-4)

There are preachers who study Christian magazines or rehash their favorite TV preacher and then there are those like John Piper. This man is a weapon - he's worth the whole 47 minutes!