How do we know that faith in Christ alone is sufficient for salvation?

The assurance of salvation through faith in Christ alone is reaffirmed throughout the New Testament. In Galatians 2:16, the Apostle Paul declares, 'Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ.' This encapsulates the essence of sovereign grace: salvation is a gift from God that cannot be earned by human effort or righteousness. Our justification comes through Christ's perfect obedience and atoning sacrifice and not through our works. The law serves only to reveal our sinfulness, showing us our need for a Savior. Therefore, it is in Christ, who fulfills the law and embodies truth, that believers find their standing before God, ensuring that faith in Him alone is entirely sufficient for salvation.