Over at another blog this week I saw a commenter refer to a gospel-centered preacher as a "one-note Johnny." Regular readers are already familiar with the purpose of consistent gospel-centered preaching. (My most recent thoughts were on The Beautiful Monotony of the Gospel.) But the reason we have to keep urging gospel-centrality in preaching is the same reason why we all need to have the gospel beat into our heads continually: we are all tempted to depart from it.
The critic of the one-note Johnnyism of gospel-centrality just doesn't get it. But the gospel is versatile enough for those who do and don't. And there's the awesomeness of gospel-centered preaching! It's a wonderful Catch-22. Those who haven't yet experienced gospel wakefulness can only do so by hearing the gospel, and those who have experienced gospel wakefulness don't tire of hearing it!