I've just been listening to last week's Unbelievable podcast addressing the question "How did life begin?"
While the debate between (atheistic scientist) Adam Rutherford and (theistic evolutionist) Fuz Rana was fairly interesting, I felt that their discussion didn't really address the question posed.
Put simply, you cannot invoke pre-existent life (i.e. God) as an explanation for the origin of life, as that is a contradiction in itself. If a living entity creates another living entity, this is not the origin of anything. It may be the start of a new phase, as it were, but it cannot be the origin.
The philosophical question at the root of the discussion should not have been "How did life begin?" but rather "Did life begin?" - was there ever a time before life, or has life existed from eternity, with no beginning and no end?