For more on John Piper and Adolf Schlatter, see: https://www.desiringgod.org/articles/not-smoking-could-even-give-us-an-edge-on-schlatter
For more on John Piper and Adolf Schlatter, see: https://www.desiringgod.org/articles/not-smoking-could-even-give-us-an-edge-on-schlatter