Both Scripture and human history are replete with derivatives of covenant and (especially) God’s covenant with his people. The old covenant and new covenant are commonly considered in covenant theology; yet, framed within the bounds of the old covenant are also individual covenants, e.g. the Abrahamic covenant, the Mosaic covenant, and the Davidic covenant. The aim of this paper is to secure a theology of covenant in an overarching manner. Preceding the covenant of grace between God and his people and that upon which it is founded is the covenant of redemption between the three members of the Godhead. Stemming then from such a covenant is the covenant of grace, which encompasses both God’s sovereign plan and the responsibility of humankind. Upon this covenant of grace rests the entirety of God’s workings. Therefore, the foundation of God’s work throughout human history is his covenant with his people. Realizing the foundational doctrine of covenant is vital to the Christian faith and life in Christ, for covenant subsists as the foundation of Christian faith.