How do we know Christ's fulfillment of the law is effective for our salvation?

The effectiveness of Christ's fulfillment of the law for our salvation is rooted in His sacrificial death and perfect obedience. Romans 8:1 tells us, 'There is therefore now no condemnation to them which are in Christ Jesus.' This means that when we are in Christ, we are no longer seen as condemned sinners but as righteous individuals. His death and resurrection accomplished full redemption, lifting the curse of the law from us because He bore that curse for our sins, as seen in Galatians 3:13.