How do we know that the grace of Christ is sufficient for salvation?

The sufficiency of Christ's grace for salvation stems from its sovereign nature and its foundation on God's promises. In 2 Corinthians 8:9, Paul writes, 'For you know the grace of our Lord Jesus Christ, that though he was rich, yet for your sakes he became poor, that you through his poverty might be rich.' This displays a great exchange where Christ's sacrifice secures for believers eternal wealth and righteousness. Additionally, Romans 8:28-30 assures us that all things work together for good to those called according to His purpose, indicating that our salvation is firmly anchored in God’s will. The assurance of His grace through faith is highlighted by verse after verse in Scripture, affirming that it is not by our works but by His grace that we are saved.