Matthew 23:1-4 (NIV) 1 Then Jesus said to the crowds and to his disciples: 2 "The teachers of the law and the Pharisees sit in Moses' seat. 3 So you must obey them and do everything they tell you. But do not do what they do, for they do not practice what they preach. 4 They tie up heavy loads and put them on men's shoulders, but they themselves are not willing to lift a finger to move them."
"We teach what we know; we reproduce what we are." —Robert Schmidgall
Elesha Hodge, comp., Today's Best Illustrations – Volumes 1-4, (Carol Stream, IL: Christianity Today, 1997), WORDsearch CROSS e-book, Under: "EXAMPLE".