Why is the covenant with Abraham important for Christians?

The covenant with Abraham is crucial in the biblical narrative as it establishes a foundation for understanding God's redemptive plan. In Acts 3, Peter references the God of Abraham, emphasizing that God's promise precedes the law given at Sinai by over 400 years. This covenant illustrates that salvation is based on faith, as evidenced by Abraham's belief in God's promises, rather than adherence to the law. Paul reinforces this in Romans and Galatians, teaching that Christians are heirs to the promises given to Abraham, ensuring that God's grace extends to all believers. Thus, the covenant serves as a testament to God's unchanging purpose to save His people through faith, independent of the law’s requirements.