How do we know Christ alone is the way to salvation?

Christ alone as the means of salvation is rooted in His unique nature as both God and man and His perfect obedience to the law. John 14:6 affirms this when Jesus states, 'I am the way, the truth, and the life.' To enter the straight gate, one must rely wholly on Christ’s righteousness, believing that He has fulfilled all that is required before God. Scripture emphasizes that no one can earn salvation through their merits; it is solely dependent on trusting in Christ. Hence, any attempt to approach God based on works or personal righteousness is inadequate and leads to separation from Him.