Large Catechism (Part 16) Exhortation to Receive the Sacraments Frequently
Link: http://www.projectwittenberg.org/pub/resources/text/wittenberg/luther/catechism/web/cat-15.html
Link
Link: http://www.projectwittenberg.org/pub/resources/text/wittenberg/luther/catechism/web/cat-15.html
Link
by Dane Carlson