Law in its broadest sense — from the specific Torah of Moses to general principles of operation. Paul's complex theology of nomos distinguishes its role in condemning sin (Rom 3:20) from its place in the new covenant (Rom 8:4).
The Torah is God's gracious gift to Israel — not the means of salvation but the constitution of covenant life. Paul argues the law was never meant to justify but to expose sin and lead to Christ (Gal 3:24).
Paul's nuanced treatment of nomos distinguishes the law's many functions: accuser, guide, shadow, covenant-boundary. The law is holy (Rom 7:12) but cannot give life (Gal 3:21). Only the Spirit fulfills what the law demanded.