Is the covenant of promise different from the old covenant of law?

The covenant of promise stands in stark contrast to the old covenant of law. The latter was bilateral and placed conditions upon Israel, which they failed to meet, as seen throughout the Old Testament (Deuteronomy 28-30). In contrast, the covenant of promise is unilateral, meaning that all conditions were met by Christ. Paul explains in Galatians 3:17-18 that the covenant of grace made before the law remains intact and is not annulled by the introduction of the law. The law was intended to show humanity their need for grace, while the covenant of promise guarantees salvation through Christ's complete fulfillment of the law, ensuring that all whom He died for will never perish.