How does the concept of faith relate to salvation in the Reformed perspective?

In Reformed theology, faith is understood as a gift from God, allowing believers to trust in the finished work of Christ for their salvation. Ephesians 2:8-9 clarifies that salvation is by grace through faith, and this faith itself is from God. Therefore, faith is not a work that earns favor with God but rather an instrument through which God's grace is received. The Galatians were warned against the deception of the Judaizers who taught that adherence to the law was necessary for salvation. Paul's writing reminds us that true faith leads to a life of obedience, not as a means of gaining salvation, but as a response to the grace that has already been granted.