Abrahamic religions "Abrahamic traditions" has been challenged. In 2012, Alan L. Berger, Professor of Judaic Studies at Florida Atlantic University, in his Preface to "Trialogue and Terror: Judaism, Christianity, and Islam after 9/11" wrote that there are "commonalities", but "there are essential differences between the Abrahamic traditions" both "historical and theological". Although "Judaism birthed both Christianity and Islam", the "three monotheistic faiths went their separate ways". The three faiths "understand the role of Abraham" in "differing ways", and the relationships between Judaism and Christianity and between Judaism and Islam are "uneven". Also, the three traditions are "demographically unbalanced and ideologically diverse". Also
Islam and other religions outcry on the perceived attack on their beliefs. As for sects within Islam, history shows a variable pattern. Various sects became intolerant when gaining favour with the rulers, and often work to oppress or eliminate rival sects, for example, the contemporary persecution of Muslim minorities in Saudi Arabia. Sectarian strife between Shia and Sunni inhabitants of Baghdad is well known through history. The 14th century Sufi saint Abd al-Karim al-Jili stated, all religions could be summed up to principle religions and actually worship Allah in their own way: Although there are different ways to worship God, those who do not