Sinclair B. Ferguson (PhD, University of Aberdeen) is Chancellor's Professor of Systematic Theology at Reformed Theological Seminary and the former senior minister of the First Presbyterian Church in Columbia, South Carolina. He is the author of several books, including By Grace Alone and Lessons from the Upper Room. Sinclair and his wife, Dorothy, have four grown children.

Theologian Sinclair Ferguson explores what it means to live worthy of the gospel by imitating Christ, and why it matters for believers.