How does the New Covenant differ from the Old Covenant?

The primary difference between the Old and New Covenants lies in the nature of their promises and conditions. The Old Covenant, represented through the Law given to Israel, was structured on conditions that required obedience from the people, leading ultimately to failure as no one could uphold it perfectly. In contrast, the New Covenant established through Christ is unconditional, centered solely on God's work and His promises without dependence on human performance, as affirmed in Hebrews 8:6. This results in a lasting relationship with God based on grace rather than the failed attempts at fulfilling law, providing eternal assurance of salvation for believers.