O. Palmer Robertson is a multifaceted man who in his life has taken on many roles—pastor, scholar, author, church planter, seminary professor, and missionary-administrator. This collection of essays seeks to honor him by embodying the Reformation and Westminster flavors of Old Princeton theology and Old Southern Presbyterianism. Further, the essays demonstrate how this blend of Old Princeton and Southern Presbyterianism bore fruit in Robertson’s theological formulation, ecclesiastical life, pastoral ministry, and worldwide impact.