This article addresses the seventeenth-century discussion among representatives of the so-called Second Dutch Reformation about the two covenants God established with human beings, the covenant of works and the covenant of grace. This teaching was originally developed by Gisbertus Voetius and Johannes Cocceius, two great proponents of Federal Theology. More specifically, the author discusses how two disciples of Voetius, Herman Vitsius and Wilhelmus à Brakel, dealt with the covenant of works and its progressive abrogation as proposed by Cocceius. Initially the article demonstrates how these theologians defended the existence and necessity of the covenant of works. Then it presents the way in which Witsius and à Brakel argued about a key element in the covenant of works, God's law, both in its natural and symbolic aspects. Finally, it shows how the Dutch theologians considered the abrogation of the covenant of works. On one hand, such covenant is still valid, since man remains bound to the obligations of God's law; on the other hand, the possibility of achieving the promise of eternal life through human works of justice was abolished, making it necessary that a Mediator obtain such promise on behalf of the elect. [ABSTRACT FROM AUTHOR]