李定武牧師，「更新傳道會」創辦人及美國總會總幹事，美國哥倫比亞大學工學博士，曾任紐約州立大學石溪校區正教授。一九八五年蒙召作全時間傳道人至今，期間獲美國費城西敏斯特神學院宗教碩士及南非國立大學神學博士學位。牧會多年，從事門徒訓練及巡迴傳道二十餘年，有數本著作。
「更新傳道會」是一個以文字，傳道為主，輔助教會的機構，除出版書籍外，並出版《新國際版研讀本聖經》，《尋道本聖經》及《聖徒裝備》、《豐盛生命》等門徒訓練之教材。
REV. TING W. LEE
Rev. Ting W. Lee is the Founder and Executive Director of Christian Renewal Ministries. He studied and received his Ph.D. at Columbia University and held faculty positions at several Universities including a full professorship at State University of New York at Stony Brook. Committed himself to full-time ministry in 1985, he studied at the Westminster Theological Seminary in Philadelphia and the University of South Africa in Pretoria, culminated respectively, in a MA degree in Religion in 1987 and a ThD in 2006. Pastor churches for many years, Rev. Lee has engaged in discipleship as well as evangelistic ministry for over two decades. He is also an author for several books.
The mission of Christian Renewal Ministries is to promote the Gospel and church renewal through preaching, discipleship and mass media ministry, especially in literature. In addition to books and booklets, its publications include the Chinese NIV Study Bible, the Chinese Quest Study Bible, and several discipleship-training materials, such as Equipping the Saints, Abundant Life, etc.