You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Martin_Luther

Context:
His last sermon was delivered at Eisleben, his place of birth, on 15 February 1546, three days before his death. It was "entirely devoted to the obdurate Jews, whom it was a matter of great urgency to expel from all German territory," according to Léon Poliakov. James Mackinnon writes that it concluded with a "fiery summons to drive the Jews bag and baggage from their midst, unless they desisted from their calumny and their usury and became Christians." Luther said, "we want to practice Christian love toward them and pray that they convert," but also that they are "our public enemies ... and if they could kill us all, they would gladly do so. And so often they do."

Question:
What was the focus of Luther's last sermon?

Jews