A review of European history reveals strained relations between Muslims and Christians for many reasons, including war, migration, fear, and prejudice. Many political problems also contribute to this. However, there have also been periods when the culture of living together was highly developed. With this paper, we want to show the different possibilities that are given to us, on the basis of good examples from history, and especially on the basis of our holy books, to build brotherhood between Muslims and Christians.The first part of the paper will highlight examples of good relations in history between Muslims and Christians. The second part will highlight verses from the Bible and the Quran that express the importance of living together in brotherhood.