22 But the Scripture has confined all under sin, that the promise by faith in Jesus Christ might be given to those who believe. 23 But before faith came, we were kept under guard by the law, kept for the faith which would afterward be revealed. 24 Therefore the law was our tutor to bring us to Christ, that we might be justified by faith. 25 But after faith has come, we are no longer under a tutor.” (Galatians 3:22–25, NKJV)
Scripture reveals a fundamental distinction between “the law” (of Moses) and “the faith” (the gospel) that “would afterward be revealed” in Christ. Failure to respect the “change of the law” results in many distortions of the gospel (Heb. 7:12; Gal. 1:6-7). The Galatians faced one such perversion of the gospel when some tried to bind circumcision and keeping the Law of Moses (LOM) upon Gentiles for their salvation (Gal. 1:8-9; 5:1-6; 6:12-13). The LOM identified sin and confined its adherents (Israel) under sin (Heb. 10:4) while guiding them toward the promised blessings that would come “by faith in Jesus Christ” (v. 22; Rom. 1:16-17; 3:21-26). Now that Christ has come, His gospel provides the blessings of the promise; Redemption from sin. Now, no one is under the LOM; it served its purpose and has been removed (Col. 2:14). Therefore, we cannot revert to the Old Testament law to justify our religious beliefs and actions. To do so requires keeping “the whole law,” not just the part of it that suits our fancy (Gal. 5:3). Every attempt to use the LOM to justify oneself before God has the opposite effect; It separates that person from Christ (Gal. 5:4). Our “hope of righteousness” is “by faith” (the gospel), not by “the law” of Moses (Gal. 5:5-6).