"A Common Word between Us and You" is an open letter, from October 13, 2007, from Muslim to Christian leaders. It calls for peace between Muslims and Christians and tries to work for common ground and understanding between both religions, in line with the Qur'anic command: "Say: 'O People of the Scripture! come to a common word as between us and you: that we worship none but God" and the Biblical commandment to love God, and one's neighbour. In 2008, the initiative was awarded the Eugen Biser Award, and the Building Bridges Award from the UK's Association of Muslim Social Scientists.
 "A Common Word between Us and You" is a follow-up to a shorter letter, sent in 2006, in response to Pope Benedict XVI's lecture at the University of Regensburg on 12 September 2006. This lecture, on the subject of faith and reason, had focused mainly on Christianity and what Pope Benedict called the tendency in the modern world to "exclude the question of God" from reason. Islam features in a part of the lecture. The Pope quoted a Byzantine Emperor's strong criticism of Muhammad's teachings. Pope Benedict clarified that this was not his own personal opinion, describing the quotation as being of a "startling brusqueness, a brusqueness which leaves us astounded."[citation needed]
 Throughout the world, however, many people thought the Pope's use of the quote insensitive.[citation needed] A very strong sense of injustice was expressed by many Muslims in response to the speech. One month later, 38 Islamic scholars, representing all branches of Islam, replied to Pope Benedict in "An Open Letter to the Pope", dated 13 October 2006. One year later, 138 Islamic personalities co-signed an open letter entitled "A Common Word between Us and You." The letter aimed to promote interfaith dialogue.
 According to the letter's website, its author was Prince Ghazi bin Muhammad bin Talal, of the Hashemite Kingdom of Jordan. The letter is signed by 138 prominent Muslim personalities from a large number of countries from several continents. These include academics, politicians, writers and muftis. Nearly half of the signatories are university academics or scholars. Professor David Ford, director of the Cambridge Inter-Faith Programme, helped to launch the letter. The following month, Ford was also one of the signatories on a Christian response seeking Muslim forgiveness.
 "A Common Word between Us and You" is addressed to Pope Benedict XVI, the Patriarchs of the Orthodox Churches, the leaders of the larger Christian denominations, and to leaders of Christians everywhere. A list is as follows:
 Since the letter was originally sent on 18 October 2007, there have been a number of new signatories with the result that there are now over 300 Muslim signatories. Great effort was made to ensure signatories represented as broad a range of viewpoints from the Muslim world as possible. Notable signatories included:
 Some commentators such as the leading Jewish American political columnist Mona Charen, have criticized the open letter.
 Robert Spencer, an American conservative commentator, writes: "The persecution of Christians is the primary indication of the letter’s inadequacy as the basis for any real dialogue between Muslims and Christians. Genuine dialogue must focus, or at least be cognizant of, the reality of what separates the two parties. Nothing can be resolved, no genuine peace or harmony attained, except on the basis of confronting those differences."
 On 28 November 2007, Patrick Sookhdeo of the Barnabas Fund, interdenominational Christian aid agency, published an analysis of the letter. In it, he pointed out some significant issues which he feels are not addressed. His analysis claimed that, while the letter implies that there is a global war on Islam by Christianity, it gives no indication of sorrow for current or historical wrongs inflicted on Christians by Islam; nor does the letter acknowledge that Muslim actions may have contributed in any alienation between Christians and Muslims.  Sookhdeo's analysis also claimed that the letter has no acknowledgement that in many areas - such as parts of Iraq, Sudan, Nigeria, Indonesia and Pakistan - rather than Christianity fighting a war to destroy or displace Muslims, the reverse is the case.
 Cardinal Jean-Louis Tauran, a Vatican official, welcomed dialogue but commented that real dialogue with Muslims is difficult. He pointed out imbalances, such as opposition or limitations to the building of churches in some Muslim countries, whilst in Christian countries, Muslims are free to build mosques. He also said,
"Muslims do not accept that one can discuss the Koran in depth, because they say it was written by dictation from God.... With such an absolute interpretation, it is difficult to discuss the contents of faith." However, Cardinal Tauran is quoted as saying that his remarks were not exclusivist and that Muslims and Christians are to engage in a substantive dialogue concerning theological and spiritual foundations.
 The Common Word website Frequently Asked Questions section addresses the criticism of the letter's perceived lack of inclusiveness: "This document is a first step, but one that strives to lay a solid foundation for the construction of many worthy edifices. The document can not be expected to do everything at once. Moreover, many of these issues were already addressed in the Amman Message. The website further acknowledges concerning the letter being a form of "propaganda": "If you mean by that witnessing and proclaiming one's faith with compassion and gentleness, then yes. If you mean forcing one's views on others, then no."
 A number of academic books and journals have emerged in the past 12 months dedicated to "A Common Word:"