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

Faith in Christ is enough for salvation because He alone is the righteous one who fulfills the law and satisfies God's justice. According to Romans 10:4, Christ is the end of the law for righteousness to everyone who believes. This means that all those who trust in Him can rest assured that their sins are forgiven and that they have eternal life. Assurance in salvation does not come from our works but by resting in the perfect work of Christ. Acknowledgment of His sacrifice and the sufficiency of His righteousness is fundamental to understanding that our hope rests solely in Him.