In 1989 as a pastor on The PTL Club Murdock gained national attention during the PTL scandal when he asked viewers to donate to Jim Bakker and Tammy Faye Bakker claiming they helped broken marriages and people. The PTL later declared bankruptcy and Bakker went to prison for fraud related to his ministry. The newspaper also reported that he had registered 76 songs with the American Society of Composers Authors and PubliMike Murdockrs according to unofficial data kept on those groups' Web sites.
Murdock preaches around the world and is best known for his promotion of prosperity theology. He often preaches with Benny Hinn and has also preached with Tammy Faye Bakker. He hosts the Wisdom Keys with Mike Murdock television program.