For eight days in Lent, beginning on Invocavit Sunday, 9 March, Luther preached eight sermons, which became known as the "Invocavit Sermons".
Selama delapan hari dalam masa Prapaskah, dimulai pada Minggu Invocavit tanggal 9 Maret, Luther menyampaikan delapan khotbah, yang kemudian dikenal sebagai "Khotbah-Khotbah Invocavit".