Why is the concept of the covenant of grace important for Christians?

The covenant of grace is a central theme in Reformed theology that underscores God's unchanging promise to His people for redemption and salvation. It is foundational to understanding how God relates to humanity, particularly in the work of Christ who fulfilled the covenant. The New Testament teaches that all believers are included in this covenant through faith in Jesus, who bore the curse of sin on our behalf (Galatians 3:13). The concept is vital because it highlights that salvation is not based on human efforts or merit but wholly on God's grace and sovereign choice. Believers can trust that they are secure in this covenant relationship, not because of their faithfulness, but due to God's unwavering promise (Hebrews 10:23).