Costi moved to Arizona in the summer of 2019 after pastoring at Mission Bible Church in Tustin, CA for nearly 7 years. He grew up as a pastor’s kid and was heavily involved in ministry but his life was completely transformed through a process that began at Dallas Baptist University in 2008, and culminated in God saving him at Mission Bible Church in 2012. Costi previously propagated “prosperity theology” and held numerous other false beliefs tied to faith healing and modern mysticism. Since his true conversion, he has been discipled as a “pastor-in-training,” entered seminary, and served faithfully in the local church. He is a graduate of Dallas Baptist University and Midwestern Baptist Theological Seminary. He is the co-author of Defining Deception, and the author of God, Greed, and the (Prosperity) Gospel. He and his wife Christyne have three children and a fourth on the way.