Meet the team
Michael Ramsden is President of RZIM and one of the founders of OCCA The Oxford Centre for Christian Apologetics. He spent most of his childhood in the Middle East and later moved to the UK, where he worked for the Lord Chancellor’s Department investing funds. Michael went on to teach jurisprudence at the University of Sheffield, whilst doing research in law and economics.
His passion is to engage with people of all backgrounds and cultures about questions of faith, which he has been doing for over twenty years. He speaks in business, academic, political, and other settings around the globe, ranging from Europe and the Middle East, to Asia and the Americas. Michael helps oversee the international team of RZIM speakers based in sixteen offices worldwide. He and his wife, Anne, have three children and are based in Atlanta.
Dr Amy Orr-Ewing
Dr. Amy Orr-Ewing is a Senior Vice President with Ravi Zacharias International Ministries and Co-director of OCCA The Oxford Centre for Christian Apologetics. She leads a team of pioneering apologist-evangelists and speaks around the world on how the Christian faith answers the deepest questions of life.
Over the last twenty years, Amy has spoken on university campuses, including Oxford, Cambridge, Vienna, Hong Kong, Phoenix, Massachusetts, in the Speakers Rooms and Chapel at the UK Parliament, on Capitol Hill, and to West Wing staff at the White House. She also speaks in banks, businesses, and consultancy firms as well as churches and conferences.
Amy gained a first-class degree in Theology and a DPhil (doctorate) from the University of Oxford. She is also the co-founder of REBOOT, a youth apologetics initiative aimed at helping young people think deeply about faith, which now runs in countries all over the world.
Amy is married to Frog and helps lead Latimer Minster, a church plant and community on a farm in Buckinghamshire, and they have three children.
Areas of interest: the nature of truth, identity, rational defence of Christianity, historicity of the Bible, New Testament history, ethical dilemmas, tolerance, evil, suffering, friendship, human trafficking.
Amy has made various appearances on national television in the UK including appearances on BBC Television (Blue Peter and Songs of Praise) and television networks in the USA. She is increasingly called upon to comment on a variety of topics relating to the Christian faith on radio interviews both across the UK and worldwide. She has contributed to various discussions including the BBC Radio 4’s Beyond Belief.
Dr Tanya Walker
Tanya Walker is Director of OCCA The Oxford Centre for Christian Apologetics, and Director of Speakers for RZIM Zacharias Trust.
She holds a PhD in Politics and International Studies from SOAS (University of London) where her thesis focused on notions of freedom, power, and the complexities at the interface of competing rights within a liberal framework. Tanya also has an MA in Islamic Societies and Cultures from SOAS and an undergraduate degree in Politics, Philosophy, and Economics from Christ Church, Oxford University. Prior to undertaking her postgraduate research, Tanya worked in the political sphere in various public policy and communication roles.
Born in the Middle East, and from Armenian descent, Tanya grew up against the formative backdrop of a persecuted church. Her passion is to connect with people from all walks of life in exploring the ultimate questions of life and meaning. Specifically, the mysterious claim of the Gospel that the Christian narrative not only provides a compelling framework through which to make sense of our world and our experiences, but is the context through which we can encounter God.
Tanya speaks internationally in academic, business, and political contexts, as well as Christian gatherings, alongside raising outstanding Christian thinkers and communicators through the OCCA programme. Tanya is married to Toby and they are based in Oxford with their three young children.
Frog Orr-Ewing is the Chaplain at OCCA The Oxford Centre for Christian Apologetics. He became the youngest incumbent in the country as vicar of All Saints Church in Peckham after a curacy at St Aldates Church in Oxford. Despite Peckham’s many challenges, over seven years the congregation witnessed marked growth and breakthroughs in community engagement and mission, and now numbers several hundred with youth and childrens activities to about 1000 children in the local area.
Frog and Amy were sent with the Blessing of the Peckham congregation on Pentecost in May 2010 to plant Latimer Minster.
Professor John Lennox
John Lennox is Professor of Mathematics (emeritus) at the University of Oxford and Fellow in Mathematics and the Philosophy of Science. He is also an adjunct Lecturer at OCCA The Oxford Centre for Christian Apologetics, as well as being a Senior Fellow of the Trinity Forum. In addition, he is an Associate Fellow of the Said Business School, Oxford University, and teaches for the Oxford Strategic Leadership Programme.
Professor Lennox has spoken at many universities, conferences and churches around the world on the interface of Science, Philosophy and Theology. He has also debated a number of prominent atheists, including Christopher Hitchens, Richard Dawkins and Peter Singer.
Professor Lennox has written many articles and books on both mathematics and Christian apologetics. The latter include Against the Flow: The Life and Witness of Daniel, Gunning for God: Why the New Atheists are Missing the Target, God’s Undertaker: Has Science Buried God? and God and Stephen Hawking: Whose Design is it anyway? His teaching for the OCCA includes material on New Atheism, Ethics, the Bible, and Science and Religion.
Visit John’s website at www.johnlennox.org
Dr Sharon Dirckx
Dr Sharon Dirckx is a Senior Tutor at OCCA The Oxford Centre for Christian Apologetics and an RZIM Apologist. Originally from a scientific background, she has a Ph.D. in brain imaging from the University of Cambridge and has held research positions at the University of Oxford, UK and the Medical College of Wisconsin, USA.
Sharon is an OCCA Alumna, and completed the OCCA programme in 2005 during its founding year. She is invited to speak and lecture in a variety of contexts across the UK, including the 2014 Veritas Forum at the University of Oxford.
Sharon has also appeared on BBC Songs of Praise, Justin Brierley’s programme, Unbelievable, on Premier Christian Radio, BBC Radio 2 Good Morning Sunday with Clare Balding and BBC Radio 4 Beyond Belief. Her topics of interest focus on the interaction of belief in God with Science, and with the problem of evil and suffering. Her book, Why?: Looking at God, Evil and Personal Suffering, won the prize for best book at the 2014 Speaking Volumes UK Christian Book Awards (presented by Pam Rhodes). Why? interweaves the stories of people who have suffered, with a practical look at some ‘Why?’ questions on suffering.
Sharon lives in Oxford with her husband and two young children.
Tom Price is a Senior Tutor at OCCA The Oxford Centre for Christian Apologetics and an apologist for RZIM. He studied Philosophy at university and later completed an MA in Christian Apologetics.
In recent years Tom has spoken at universities and churches in Hong Kong, Europe, South Africa, USA and other places across the world. In the UK, he has provided teaching for major conferences such as Keswick, Spring Harvest and BMS Catalyst. He lectures for HTB School of Theology and is regularly involved in outreach alongside OICCU and other Christian Unions. Additionally, Tom has written for various media outlets and has appeared on Premier Christian Radio’s ‘Unbelievable?’.
Tom was previously the Founding Editor of UCCF’s website bethinking.org. Tom is interested in worldview, culture, theology, missiology, apologetics and philosophy of religion broadly. He is passionate about mission that engages with where people really are and the serious questions and objections they have about religious beliefs. Tom is married to Caroline, has young children, and they live in Oxford.
Dr Max Baker-Hytch
Max joined OCCA The Oxford Centre for Christian Apologetics as Senior Tutor in 2016 having completed a D.Phil. (PhD) in Philosophy at Oxford University in 2014 with a dissertation that examined the philosophical implications of recent accounts of the causal origins of religious belief. He subsequently went on to hold a postdoctoral research fellowship at Oxford as part of the Templeton-funded ‘New Insights and Directions in Religious Epistemology’ project. He then held a research fellowship at the University of Notre Dame’s Center for Philosophy of Religion, before returning to Oxford. Max’s research interests lie at the intersection of analytic philosophy of religion and epistemology, and he has published in scholarly journals on such topics as divine hiddenness, religious diversity, etiological challenges to moral and religious beliefs, the nature of rationality and knowledge, and methodological issues concerning the emerging field of analytic theology. Downloadable versions of some of Max’s publications can be found here.
Max teaches the philosophy component of the OCCA One-Year programme and leads the OCCA Doctoral Fellows programme. He also speaks at a popular level on a range of topics related to the rationality of belief in God as well as the historicity of the Gospels.
Recent Research Articles and Chapters
- Forthcoming. “Epistemic Externalism in the Philosophy of Religion”. Philosophy Compass
- Forthcoming. “Testimony amidst Diversity”. In Knowledge, Belief, and God: New Insights in
Religious Epistemology, edited by Matthew Benton, John Hawthorne, and
Dani Rabinowitz. Oxford University Press.
- 2016. “Mutual Epistemic Dependence and the Demographic Divine Hiddenness Problem”.
Religious Studies 52 (3): 375-394.
- 2016. “Analytic Theology and Analytic Philosophy of Religion: What’s the Difference?”.
Journal of Analytic Theology 4: 347-361.
- 2015. “Defeatism Defeated”. (Co-authored with Matthew Benton).
Philosophical Perspectives 29 (1): 40-66.
- 2014. “Religious Diversity and Epistemic Luck”.
International Journal for Philosophy of Religion 76: 171-91.
For a full list of Dr Baker-Hytch’s publications, including article and other brief pieces, please see his CV, which is listed on his Academia.edu page.
Downloadable versions of several of Max’s published papers are available at PhilPapers
Simon Edwards is a speaker and apologist for RZIM Zacharias Trust.
He holds separate degrees in Law and Economics from the University of Queensland, Australia, as well as Graduate Diplomas in Legal Studies and Education. Simon also has a Postgraduate Diploma in Theology from the University of Oxford and is currently studying for a Master’s degree in Divinity at the University of St Andrews. He brings with him a diverse range of Christian ministry, legal, government, and teaching experience. Prior to joining RZIM, Simon lived and worked in Australia as a lawyer, specializing in private practice in commercial law and in government practice in constitutional law. He also worked for two years in a secondary school as a religious education teacher.
Simon is a regular speaker in many different settings, including at evangelistic and apologetic training events in universities, schools, churches, and workplaces both in the UK and abroad. He has also been invited to speak on a number of BBC Radio programmes regarding the evidence for the Christian faith, particularly from his perspective as a lawyer. Simon’s areas of interest include moral apologetics, human dignity, faith and reason, the nature of truth, evidence for the resurrection, suffering and ethics. Simon is married to Natasha, who is part of the leadership team at Latimer Minster, a missional Church of England church situated between London and Oxford. Simon and Natasha live in High Wycombe with their three young children, Grace, Jonathan, and Joseph.
Dr Os Guinness
Os Guinness is an author and social critic. Great-great-great grandson of Arthur Guinness, the Dublin brewer, he was born in China in World War Two where his parents were medical missionaries. A witness to the climax of the Chinese revolution in 1949, he was expelled with many other foreigners in 1951 and returned to Europe where he was educated in England. He completed his undergraduate degree at the University of London and his D.Phil in the social sciences from Oriel College, Oxford.
Os has written or edited more than thirty books, including The Call, Time for Truth, Long Journey Home, Unspeakable, A Free People’s Suicide, The Global Public Square, and Renaissance. His latest book Fool’s Talk – The Recovery of Christian Persuasion was published by InterVarsity Press in June, 2015.
Before moving to the United States in 1984, Os was a freelance reporter with the BBC. Since then he has been a Guest Scholar at the Woodrow Wilson Center for International Studies, a Guest Scholar and Visiting Fellow at the Brookings Institution, and Senior Fellow at the Trinity Forum and the EastWest Institute in New York. From 1986 to 1989, Os served as Executive Director of the Williamsburg Charter Foundation, a bicentennial celebration of the First Amendment. In this position he helped to draft “The Williamsburg Charter” and later “The Global Charter of Conscience,” which was published at the European Union Parliament in 2012. Os has spoken at dozens of the world’s major universities, and spoken widely to political and business conferences on many issues, including religious freedom, across the world. He is currently a senior fellow at OCCA The Oxford Centre for Christian Apologetics in Oxford, though he still lives with his wife Jenny in the Washington DC area.
“I promise I will leave no stone unturned in my pursuit of truth.”
When former skeptic and seventeen-year-old Ravi Zacharias heard the words of Jesus in John 14:19, “Because I live, you also will live,” the trajectory of his life changed forever. In a time of helplessness and unbelief—when he was on a bed of suicide—the truth of Scripture brought hope to Zacharias, and he committed his life to Christ, promising, “I will leave no stone unturned in my pursuit of truth.” Earlier in John 14, Jesus says, “I am the way, and the truth, and the life.” This verse has become the cornerstone of Zacharias’s ultimate mission as a Christian apologist and evangelist: to present and defend the truth of Jesus Christ that others may find life in Him.
Zacharias’s calling to preach was first confirmed when he was awarded the Asian Youth Preacher Award at the international Youth Congress in Hyderabad at the age of nineteen. Years later, the Billy Graham Evangelistic Association invited Zacharias to be a plenary speaker at the inaugural International Conference for Itinerant Evangelists (“Amsterdam ‘83”) to address a gathering of 4,000 other speakers. It would be another turning point for him, as he began to seriously consider the critical need of apologetics to remove the intellectual and existential barriers that kept many skeptics from considering the truth claims of Christ. A year later, in 1984, he founded Ravi Zacharias International Ministries (RZIM).
At age 71 he remains committed to his calling to represent the gospel of Jesus Christ through historical, philosophical, and moral foundations and to defend it against objectors with grace, clarity, and coherency. He has laid the framework of the truth of the gospel to millions of people in more than 70 countries, including on the campuses of some of the world’s leading universities.
RZIM exists to reach and challenge those who shape culture with the credibility of the gospel of Jesus Christ. In 2017, Zacharias’s vision to establish an apologetics training center in the United States with global reach was realized with the launch of the Zacharias Institute in Atlanta. RZIM has sixteen offices throughout the world in the United States, Canada, Peru, Kenya, South Africa, the United Kingdom, Austria, Spain, Romania, Macedonia, Turkey, Singapore, Hong Kong, India, and the Middle East. Through its global team of speakers and more than 200 employees worldwide, RZIM seeks to impact the heart and intellect of society’s thinkers and influencers through:
- Evangelism: RZIM shares the gospel through its global team of over 80 speakers and experts as well as its radio and television programs, podcasts, and publications that reach listeners and readers around the world.
- Apologetics: A team of evangelists and trained RZIM speakers participate in open forums, speaking engagements, panels, and debates to answer objections to Christianity with gentleness and respect.
- Spiritual Disciplines: RZIM strives to model and build Christ-like character through our books, group studies, and biblical resources.
- Training: RZIM hosts a range of programs and courses in the US, UK, India, Singapore, and online, which are designed to instruct and equip all who desire to effectively contend for the Christian worldview.
- Humanitarian Support: RZIM’s humanitarian arm, Wellspring International, identifies and financially equips existing organizations aiding women and children at risk and provides individual scholarships to support education, healthcare, and basic living needs.
Zacharias has spent the past 45 years commending the Christian faith and addressing life’s great existential questions of origin, meaning, morality, and destiny with eloquence and grace. He fully believes the truth of Jesus Christ can endure the toughest critiques and philosophical attacks. He has authored or edited over 25 books in the fields of theology, apologetics, comparative religion, and philosophy. Zacharias and his wife, Margie, have been married for 45 years and have three grown children. They reside in Atlanta.
Updated January 10th, 2018
Please note that this bio may not be distributed or edited without the express written permission of RZIM. Thank you.
Rev Professor Alister McGrath
Alister McGrath is the Andreos Idreos Professor of Science and Religion at the University of Oxford. He was the Founding President of OCCA The Oxford Centre for Christian Apologetics. His previous posts include being Professor of Theology and Education at King’s College, London, and Professor of Historical Theology at Oxford University.
McGrath gained first class honours from Oxford University in Chemistry (1975) and first class honours in Theology (1978). He holds an Oxford DPhil (1978) for his research in molecular biology, a DD from Oxford University’s Faculty of Theology for his work in historical and systematic theology (2001), and a DLitt from Oxford University’s Division of Humanities for his research in science and religion (2013). He was elected FRSA in 2005, in recognition of his work as a public intellectual. A former atheist, he has established a reputation as one of the leading apologists for Christianity, as well as one of the world’s most respected Christian theologians. His many books include a new highly acclaimed biography of CS Lewis, a series of market-leading textbooks in Christian theology, and some best-selling books engaging with the “New Atheism”.
Visit Alister’s website at www.users.ox.ac.uk/~mcgrath