Tredegarville Baptist church boasts what must be among the most striking set of figures for any church in Wales. In four years, more than 500 people have been baptised - all of them adults professing their new-found Christian faith. Nearly all the converts have been asylum-seekers, the great majority from Iran, who’ve taken huge risks to reach this country, and often face a very long wait to know whether they’ll be granted permission to stay. What motivates this growth in faith among this community, and who is the man leading them? All Things Considered this week visits the church to meet some of the recent converts, together with Pastor Phylip Rees, the church's minister for the past fifteen years.