Teolog wielokrotnie gościł w Polsce na zaproszenie katolickiego stowarzyszenia En Christo.
Bibliografia Streams of Renewal (1986, kolejne wydanie 1997) One Lord One Spirit One Body (1987) Dictionary of Pentecostal and Charismatic Movements (1988) – szereg haseł The Glory and the Shame (1994) Strategy of the Spirit? (1996) Blazing the Trail: Where Is The Holy Spirit Leading The Church? (2001, wyd. pol. Przecieranie nowych dróg, Katowice 2009) The Spirit of Unity: How Renewal is Breaking Down Barriers between Evangelicals and Roman Catholics (2001) Toward Jerusalem Council Two: The Vision and the Story (2002, kolejne wydanie 2004) The New International Dictionary of Pentecostal and Charismatic Movements (2002) – szereg haseł God’s Masterplan (2003, wyd. pol. Wielki Plan Boga, Katowice 2009) The Banquet of Life: The Dignity of the Human Person (2004) The Messianic Jewish Movement, z Danielem Justerem (2004) The Marranos (2006) Church Forward: Reflections on the Renewal of the Church (2007, wyd. pol.