“Since God is one, he will justify the circumcised by faith and the uncircumcised through faith. Do we then nullify the law through faith? Absolutely not! Instead we uphold the law.” Romans 3:30-31 NET https://bible.com/bible/107/rom.3.31.NET
By and large, Christians ignore God’s law, claiming our salvation instead to be from faith and not obedience to the law. This belief misses God’s word and work in two ways. First, the Jew was not saved by the law but by grace through faith in God’s covenant with Abraham and those who believed as Abraham did. So too, the second failure is that while Christians are likewise saved under the New Covenant by faith in the work of the Son of God, they are still, like Israel, commanded to obey the moral, not the ritual law, of God. Obedience to the law reflects the character of the One Who initiated the covenants that saved our souls from eternal condemnation. The law is how we demonstrate our allegiance to the One True God. We are a sinful, rebellious people by nature. Perfect obedience to the law is impossible; therefore, the law that requires perfect obedience could never save us. We are saved by grace through faith, and now as Christians, empowered by the Spirit so that we can obey the law proving to God, angels, and men that we love the Lord our God with all of our heart, soul, mind, and strength with thanksgiving for all that He has done by grace in Jesus to save us. We have faith in Jesus that His perfect obedience to the law made Him the unblemished, perfect sacrifice for sin so that He could take the punishment for our disobedience to that law upon Himself. His resurrection proved the acceptance of His sacrifice and allowed Him to appropriate to all who come to Him in repentance and faith the righteousness God requires of His people to live with Him forever. Having received this grace, pardon for sin, and appropriation of righteousness, we now live like Jesus in perfect obedience to God’s will as recorded in God’s word, empowered by God’s Spirit, all for the glory of God.
