How do we know salvation is fulfilled in Christ?

The fulfillment of salvation is illustrated in the passage from Romans 9:25-26. Here, Paul quotes the prophet Hosea to show that those who were not considered God's people will be redeemed and called His children. This reflects the promise of salvation that extends beyond Israel to Gentiles, signaling that salvation is a divine act of calling and redeeming His people through Jesus Christ. It is through Christ's sacrifice that we are reconciled to God, confirming the completion and fulfillment of God's salvific plan (Romans 9:25-26).