Eric Metaxas, author of books such as Bonhoeffer: Pastor, Martyr, Prophet, Spy and Amazing Grace: William Wilberforce and the Heroic Campaign to End Slavery, was the keynote speaker at the 60th National Prayer Breakfast on Thursday. After an entertaining introduction – where everything from the Occupy movement to the hefty prayer breakfast fee ended up as materials for jokes – the born-again Christian author got down to business and focused on contrasting phony religiosity and real faith.