For much of Christian history, pastors not only served as theologians and preachers, but also as poets and hymn writers. They ministered through their preaching and their poetry, their sermons and their songs–laboring to see God's truth planted not only in people's minds, but helping it find its way into their hearts and even onto their lips. They viewed such labors as an artistic and devotional tool of catechesis, one that has largely gone missing over the last few generations. But...