Onething conference is an annual Christian conference put on by the International House of Prayer (IHOPKC) every December at the Bartle Hall Convention Center in Kansas City, MO. Major media outlets have reported that the International House of Prayer is affiliated with the controversial New Apostolic Reformation movement, which has as its central tenet the "five-fold ministry" teaching that present-day apostles and prophets hold governing offices in the church and possess similar authority and functions to Christ's original apostles and the Old Testament prophets. Though the International House of Prayer has not used the term "New Apostolic Reformation" to describe their teachings, nevertheless they promote the present-day governing offices of apostles and prophets—the central teaching of the New Apostolic Reformation—including promotion of this teaching by IHOP founder, Mike Bickle.
The conference sermons focus on prayer, evangelism, and Christian eschatology, preceded by long times of worship. The conference was initially inspired when Paul Cain, a former associate of International House of Prayer leadership, had a spiritual experience in which he saw thousands of young people gathering in Kansas City. In addition to theological instruction, the speakers often deliver inspirational messages on themes such as living a life without regrets. The sessions often include long periods of prayer for the United States, sometimes lasting until midnight. A particular emphasis is given to prayer for colleges and college students. The attendees numbered over 25,000 in 2010. Most attendees are young adults. More recent, Matt Redman has agreed to lead worship in Onething 2013.
Speakers and worship leaders have included:
International House of Prayer has published five Onething Conference Albums which records the live worship music written by IHOPKC worship leaders. For example, Cory Asbury, Laura Hackett Park, Matt Gilman, Misty Edwards, Jon Thurlow, and more.