God exists. This fact is an assumption that underlies the whole of the Bible but how can it be established, how do we know that it is true. The most popular podcast of a sermon from Mill Hill East Church by a long way deals with this issue. The sermon is actually a summary of a whole series of sermons which preceded it so it is a little cursory in the treatment of the complex issue but it appears to have packed a punch. So it's been broadcast as a radio show and is available online here. Another popular podcast from last year is available on the audio player on this page.