Why is the mediation of Jesus Christ important for salvation?

The mediation of Jesus Christ is critical for salvation because He is the one through whom God's grace is imparted to sinners. As stated in 2 Timothy 1:9, salvation comes 'according to His own purpose and grace, which was given us in Christ Jesus.' This means that all aspects of salvation—from election to redemption—are accomplished through Christ and not by any individual effort or merit. Jesus acts as the mediator between God and humanity, ensuring that God's purposes are fulfilled and that we receive the grace necessary for salvation. It is through Him that sinners receive light from darkness and are transformed.