How does Galatians teach about the sufficiency of Christ's sacrifice?

In Galatians, Paul makes a powerful declaration regarding the sufficiency of Christ's sacrifice. He asserts that salvation is not from men or through individual effort, but through Jesus Christ alone. The implication is that adding any requirement, such as circumcision for righteousness, undermines the completeness of Christ’s redemptive work. As Paul teaches, salvation comes by God's grace and cannot be a conjoined effort with human works. This understanding fosters a deep reliance on Christ’s atoning death and encourages believers to embrace the freedom that grace provides, liberated from the bondage of legalistic adherence to the law.