C.J. Mahaney leads Sovereign Grace Ministries in its mission to establish and support local churches. After 27 years of pastoring Covenant Life Church in Gaithersburg, Maryland, C.J. handed the senior pastor role to Joshua Harris on September 18, 2004, allowing C.J. to devote his full attention to Sovereign Grace. He serves on the Council of the Alliance of Confessing Evangelicals and on the board of The Council on Biblical Manhood and Womanhood.

He has also edited or coauthored four books in the Pursuit of Godliness book series, published by Sovereign Grace Ministries: Why Small Groups?, This Great Salvation, How Can I Change?, and Disciplines for Life.

C.J. and his wife, Carolyn, have three married daughters and one son. They make their home in Gaithersburg, Maryland.