Jesus is the only way to God because He is the only mediator appointed by God for our salvation, fulfilling the righteous requirements of the law through His sacrifice.
The exclusivity of Christ as the only way to God is rooted in His unique role as the mediator between God and humanity. John 14:6 records Jesus saying, 'I am the way, the truth, and the life. No man cometh unto the Father, but by me.' This assertion is upheld by Isaiah's revelation of God’s highway of holiness in Isaiah 35, which signifies a definitive way that God has established for salvation. The righteousness of God cannot be bypassed; therefore, only through Christ, who is both fully God and fully man, can we be reconciled to the Father. Furthermore, Acts 4:12 states that there is no other name given under heaven among men whereby we must be saved, affirming that salvation is found only in Him. This principle reinforces the historic Reformed belief in Christ's sufficiency and the necessity of grace through faith.
Scripture References:
John 14:6, Acts 4:12, Isaiah 35:8
Commentary