From 1531 to 1535 Luther delivered many of these sermons, what are known as his Hauspostille (house postils). These were written for fathers to use as devotional material in their households, as well as for pastors to use for aid in sermon preparation. Just as Luther expected the head of the household to teach the Catechism to his children, so he desired them to have devotions with them, a practice that Luther was eager to do himself.
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