Interesting post (and following discussion) on this subject over at Paul McCain’s blog, Cyberbrethren. I found this comment from McCain especially helpful:
At issue is the unfortunate penchant of some who claim to be “confessional Lutherans” for avoiding any mention of the Christian life in their sermons. This stands in utter contradiction of Scripture, the Lutheran Confessions and all the orthodox Lutheran theologians, preachers and teachers from the Reformation through the age of Orthodoxy.
It would seem that any antinomian tendencies in Lutheranism are inconsistent with confessional Lutheranism. Similarly, there are tendencies or phenomena in Calvinism that are inconsistent with confessional Calvinism (e.g. immediate regeneration).