How do we know grace is superior to the law?

The law, given at Mount Sinai, reveals God's holiness and man's inability to meet its demands. Galatians 4:24-25 explains that the covenant of law leads to bondage, whereas the covenant of grace, as represented by Sarah, offers freedom. The law demands perfect obedience, which no one can provide, while grace offers salvation through faith in Jesus Christ, who satisfied the law on our behalf. This distinction underscores the importance of relying on God's grace rather than our own works for salvation.