Who do we think we are? Ernie Rea and guests discuss our fascination with our ancestors. Is there a contemporary spiritual need that finds an answer in tracing our roots? Ernie is joined by Else Churchill, from the Society of Genealogists: Julian Thomas, Professor of Archaeology at Manchester University; and Douglas Davies, Professor in the Department of Religion and Theology at the University of Durham.

Producer Rosie Dawson.

As President Obama joins Angela Merkel to celebrate the Reformation 500 Anniversary, Ernie Rea and guests discuss the religious climate in Germany.

The Reformation left Germany with a predominantly Catholic South and Protestant North; but today the scene is much more nuanced. The legacy of Communism means that religious affiliation in the former DDR is much lower than in the West; the number of Muslims in Germany now nudges five million, following the recent arrival of Syrian refugees, and debates around Islam and multi-culturalism are likely to play a prominent part in elections later this year.

Ernie's guests are Nick Baines, the Anglican Bishop of Leeds, who as a multi linguist has had a close relationship with all things German for many years; James Hodkinson, Associate Professor in German at the University of Warwick; and Silke Horstkotte, a Lutheran living in Leipzig who is also a Research Fellow at Warwick.

Producer: Rosie Dawson.

On Good Friday, next week, the story of Jesus' arrest, trial and crucifixion will be read in Churches across the country. In the Passion according to St John, Pontius Pilate famously asks: what is truth? An intriguing moment which resonates with modern times. We might well ask the same question today: an era of 'alternative facts' and 'fake news'; or so we are told.

Religions claim they hold the 'truth', but religious belief cannot be proved like the sort of truth which is based on empirical evidence. What are some of the religious understandings of truth? And what role does religion have to play in a so-called 'post-truth' world?

Producer: Dan Tierney

The Seal of the Confessional is the absolute duty of Catholic priests not to disclose anything they learn from people who come to them for confession. But is there a moral imperative to do so if they discover a crime has been committed?

For some, confessing your sins to a priest is a theological cop out rather than taking genuine responsibility for your actions; to others it's about trying to become a better person in the eyes of God. How is confession viewed within different religions? Why is confession with a mediator so important for some religious people and not for others? Is confession a medieval relic or does it still have something to offer the modern world?

Ernie Rea discusses religious perspectives on confession with Catholic priest, Fr. Chris Hilton; Rabbi Dr Jonathan Romain; Rory Singer, a former Buddhist Monk and Contemplative Psychotherapist; and Suzanne Hyde, Clinical Director at St Marylebone Centre for Healing and Counselling.

Producer: Dan Tierney

The reading of a passage from the Koran at Glasgow's St Mary's Cathedral during its Epiphany Mass earlier in the year caused an almighty row. The verses, which were read out by a local Muslim student, denied the divinity of Jesus and brought a wave of criticism and social media threats, which prompted a police investigation.

Most people agree that interfaith dialogue is a good thing, but interfaith crossovers within a worship setting risk causing great offense. Why is interfaith worship so controversial, particularly if the intention is to deepen friendships between local faith communities? How can churches, mosques and temples steer a safe course?

Robert Beckford discusses interfaith worship with Rev Anthea Ballam, an interfaith minister and priest; Rev Dr Gavin Ashenden, an Anglican priest and theologian; and Shayk Sohaib Sayeed, a Koranic scholar and a chaplain at the University of Edinburgh.

Producer: Dan Tierney

Science fiction has perhaps been unfairly dismissed by many critics and academics; seen by some as a niche genre, not befitting the elite group of literary works deemed to be 'high art'. While some examples of science fiction could be criticised for perpetuating fantasy clichés, others undoubtedly explore the biggest questions of life. Fans argue that the Sci-Fi universe allows the audience to suspend their disbelief about what is conventional, and opens up a space to explore philosophical, ethical and religious ideas in a relatable, absorbing and entertaining way. So how has religion been explored in the most influential works of science fiction? And what does science fiction have to tell us about faith and religion?

Robert Beckford discusses the role of religion in science fiction with Aliette de Bodard, a writer with an interest in the interplay between science fiction and religion; Roz Kaveney, a writer, poet and critic; and Dr Sarah Dillon, author and Cambridge academic who explores science fiction in literature and film.

Producer: Dan Tierney

One in four people has a mental disorder at some point in their life, according to government figures. In a speech earlier this year, the Prime Minister, Theresa May, said mental health had been "dangerously disregarded" as secondary to physical health and changing that would go "right to the heart of our humanity". Among the calls from experts for more funding to improve services is the complex question of how, as a society, we have got to the point where half of mental health problems start by the age of 14. What are the best strategies for prevention as well as treatment of mental illness? Does someone's personal religious and spiritual beliefs have a role to play? Or does religion do more harm than good?

Ernie Rea explores religious perspectives on mental health with the Rev Will van der Hart, London vicar and a director the Mind and Soul Foundation, which explores Christianity and Mental Health; Professor Rasjid Skinner, consultant clinical psychologist and expert on Islamic approaches to psychology; and Dr Chetna Kang, consultant psychiatrist and a priest in the Hindu tradition of Bhakti Yoga.

Producer: Dan Tierney

70 years ago Pakistan was born out of the partition of the Indian sub-continent, at the end of British colonial rule. It was created to meet the demands of Indian Muslims for their own homeland. The Constitution states that all laws are to conform with the rulings of Islam as laid down in the Quran and Sunnah. Religion is deeply woven into Pakistan; its culture, its laws and its justice system. It's been a turbulent 70 years politically, characterised by a civil war which resulted in the breakaway of Bangladesh; interchanging periods of military rule and transitional democracy. And Pakistan is frequently cited among the top 10 worst countries for human rights violations of religious minorities and women.

How has religious faith shaped Pakistan? To what extent are the blasphemy laws, adultery punishments and honour killings religious? And how is the cultural and religious patriarchy of the country being challenged today?

Ernie Rea explores religion in Pakistan with Iftikhar Malik, Professor of history at Bath Spa University; Humaira Masihuddin, an Islamabad-based lawyer and Islamic scholar, who trains the Pakistani police and judiciary; and Dr Saeeda Shah, reader in Education at the University of Leicester and an expert in Islam and Education in Pakistan.

Producer: Dan Tierney

Maths and religion are both ways of seeking order and understanding in the world. Numerologists who like to find significance in every number believe that 2016 was always going to be a bad year because of that combination of numbers - 2 0 1 6. Mainstream religious traditions have often set great store by numbers. Certain ones recur repeatedly in their scriptures, 3, 7, 40. What's that all about?

Ernie Rea discusses religion's obsession with numbers with Marcus du Sautoy, Professor for the Public Understanding of Science and Professor of Mathematics at the University of Oxford: Alex Bellos, science writer and journalist and author of the book, "Can you solve my problems?" and Rabbi Debbie Young-Somers a Community Educator at the Movement for Reform Judaism.

This year sees the 500th anniversary of the moment when Martin Luther sparked the Reformation by - tradition has it - nailing his 95 theses to a church door in Wittenberg. Ernie Rea and guests discuss what led Luther to take this step, how his thought and personality affected the course of the Reformation and whether - were he to walk into the 21st century - he might actually find himself to be a good Catholic.

Producer: Rosie Dawson.