In this episode Joel and Sam dissect the classic song Purify My Heart (Refiner's Fire) by Brian Doerksen, Sam meets William Atkinson, senior lecturer in pentecostal theology from London School of Theology, and the new season of the 12 Song Challenge kicks off with a brand new challenge for April. The featured song is 'We Lift Our Voices (For the Lord is Good)' by Andy Clark. (There are links to things mentioned at www.resoundworship.org/podcast)