In this article the author focuses on the question of whether Christians and Muslims believe in and worship the same God, as it was raised and answered in Miroslav Volf's book "Allah. A Christian Response". This book is one of the outcomes of a series of events, which constitute a vitally important context for understanding and evaluating its argument: the Regensburg lecture of Benedict XVI. (September 2006), the responding open letter of Muslim scholars "A Common Word Between Us and You" (October 2007), the immediate Christian response to that letter "Loving God and Neighbor Together" (November 2007), co-authored by Volf, and a series of interfaith meetings related to these documents, where Christian, Muslim and Jewish scholars presented papers published in two collections (co) edited by Miroslav Volf (2010 and 2012). In light of these documents and collections of papers and with reference to several other recent treatments of the question, whether Christians and Muslims believe in and worship the same God, Volf's own contribution to this debate, presented in his recent book, is analyzed and evaluated.