How do we know the covenant with Abraham is significant?

The covenant made with Abraham is a critical part of understanding God's redemptive plan in Scripture. It is characterized as a unilateral promise from God, wherein Abraham's belief in God was credited to him as righteousness (Genesis 15:6). This illustrates that God's promises hinge upon faith rather than human actions or moral obligations. The covenant signifies that salvation is initiated by God and is sustained by His faithfulness, not by human effort or the adherence to law, which highlights the gospel's foundational tenet that we are justified by faith alone.