How do we know that salvation is only through Christ?

The doctrine of salvation through Christ alone is foundational in Reformed theology, encapsulated in the teachings of Scripture that emphasize Christ as the sole mediator between God and man. Passages such as John 14:6 affirm that Jesus is 'the way, the truth, and the life,' and that no one comes to the Father except through Him. In Acts, as Peter is directed to preach to the Gentiles, it underscores this truth that salvation is extended to everyone who believes in Christ, regardless of their lineage or previous unclean status. Ephesians 2:8-9 also reinforces this doctrine, highlighting that grace through faith, not works, is the means of salvation, making it clear that it is a gift from God, emphasizing His sovereignty in salvation.