Jeff serves the Sovereign Grace Church of Louisville through preaching and helping Senior Pastor C.J. Mahaney oversee the teaching diet of the church, along with pastoral care. In addition, Jeff is the Director of Theology and Training for Sovereign Grace Churches and the dean of the Sovereign Grace Pastor's College. As a part of that role, Jeff leads pastoral and theological training for Sovereign Grace Churches, and is responsible to see that ordination standards and testing are in place to serve Regional Ordination Committees. He also works with the Theology Committee in developing the Sovereign Grace Statement of Faith and develops resources through writing and publication to equip people both in and outside of Sovereign Grace.