Can a preacher of the Gospel emphasize instruction in Christian living? Holsten Fagerberg asserts that this is part of the Confessional teaching:

In the preface to LC Luther complains about the neglect of private devotions on the part of Evangelical pastors. Having been freed from the compulsion of reading the breviary every day, one could at least desire that “every morning, noon, and evening they would read, instead, at least a page or two from the Catechism, the Prayer Book, the New Testament, or something else from the Bible and would pray the Lord’s Prayer for themselves and their parishioners. In this way they might show honor and gratitude to the Gospel, through which they have been delivered from so many burdens and troubles, and they might feel a little shame because, like pigs and dogs, they remember no more of the Gospel than this rotten, pernicious, shameful, carnal liberty.” As used here, “Gospel” points to the Reformation message in its entirety, which includes among other things instruction concerning the Christian life. Many misused the Gospel, claiming a false freedom.

A New Look at the Lutheran Confessions (1529-1537) (Kindle Locations 1867-1874)