Why is it important for Christians to understand the covenant of grace?

The covenant of grace, as opposed to the covenant of works, is central to Reformed theology. It illustrates that God has chosen to save sinners based solely on His grace, without any regard to their merit or actions. This covenant was established before the foundation of the world and emphasizes that salvation is a gift from God, received by faith. Recognizing this helps Christians understand that they cannot earn God's favor through their deeds, but are accepted because of Christ's completed work on their behalf, thus fostering deeper faith and reliance on Him.