John Piper has some new posts on how and why he exercises that are well-worth reading.
Teachers have profound, unintended effects on their students. Jesus said,
A disciple is not above his teacher, but everyone when he is fully trained will be like his teacher. Luke 6:40
It was partly because of the examples of Bible teachers like John Piper and Jim Newheiser that I started exercising a couple of years ago. I am really glad to see Piper talking about this important area of stewardship and heart change.