Almost everything get found in the Quran: compassion and hate; Peace and violence; Tolerance and intolerance; Forgiveness and revenge; Coexistence and expulsion of other believers. By using the Quran, any assertion can either be defamed or disproved. This is also known from the Bible: as better one is familiar with one or another holy script, as better he would be able to underline his arguments with the appropriate quotation.
It begins with a historical classification and explains the emergence and spread of the Holy Scriptures of the Muslims. The Quran, composed of 114 chapters (sections with a different number of verses), is divided into a Mecca and a Medina period. That first one produced the peaceful verses and the one have produced the violent passages, is not quite true, the sections are only a rough classification. Muslims believe that the Quran was dictated to the Prophet Muhammad by an angel (Gabriel) as the direct word of Allah. Unlike the Bible his chapters follow no thematic or narrative structures.
The Quran is a work that is strongly embedded in its period of development: the respective political and social circumstances influenced the "recitations" of Muhammad (he did not write them down, but dictated them). However, as more time passed from the time of the Prophet as more untouchable became the Quran.
Statements and regulations were no longer subject to necessary revelations. In addition to this, different from the Jewish and Christian sacred texts, which are regarded as revelations but which were written down by men (...), believing Muslims are taking the Quran as an "eternal book", available in the same language and with the same content since creation, and has been kept with God.
The Quran arose in several phases, which brought a more or less quarrelsome or even xenophobic orientation in the Holy Scriptures according to the situation in which Muhammad and his community found themselves. Many, detractors and proponents of Islam, nevertheless "understand these divergent passages not as a mirror of their period of origin."
Most of the Quran's rules are concrete responses to certain events of the past. One can say that Allah did not create Mohammed according to his model, but Muhammad had put those sentences that were just fitting for him in his particular life situation into the mouth of God.
The prophet had changed his attitude towards the "unbelievers" several times. As more women Mohammed had, as more the principle of equal rights disappeared which has been available in former chapters. It also looks that Mohammad has been shaming himself about his much younger wives as he has been coming in the age of 60, because at this time he started with the topic of veiling for women.
Only when we understand the Quran as a human work with everything that belongs to humans than then the negative aspects of violence can get neutralized and the positive aspects of the spiritual passages that the faithful believers need to feel comfort and love can get emphasized.