Geerhardus Vos develops the ethical elements present during the patriarchal period through a brilliant treatment of circumcision. In this episode, Lane Tipton and Camden Bucey discuss pages 88–90 of Vos's book Biblical Theology: Old and New Testaments to shed light on the indicative and imperative dimensions of God's covenantal relationship to his people. In the course of this study, the relationship of circumcision to baptism is developed as both are signs of the righteousness God's people have by faith in Jesus Christ (Rom 4:11–12; cf. Col 2:11–12).