Marlin Lavanhar is the senior minister of All Souls Unitarian Church in Tulsa, Oklahoma, one of the largest Unitarian Universalist Association congregations in the world.

In this episode, Matt talks with Marlin about how his preaching changed when a group of Pentecostal universalist Christians joined All Souls, the postliberal critique of Unitarianism, and preaching "belief" among rationally-minded theists and humanists.