There is a terrible danger when talking about "Biblical Productivity" that some might think "Biblical Productivity" promises material wealth or prosperity by following Jesus or the Bible. The productivity I'm after is that which promotes God's glory. I want to be as wise and effective as possible for Him, and for others; and I want other Christians to think with me about how best to steward our time and attention so that we can serve and enjoy him most.
I pray that this emphasis is evident when reading my posts. But I was reminded by the video embedded below (discovered via Justin Taylor) that wolves in sheep's clothing can twist the language of productivity and pervert the Bible and the Gospel into a message about material productivity and prosperity.