How do we know that the gospel is for all nations?

The universal nature of the gospel is affirmed throughout the New Testament, with the Great Commission serving as the foundational mandate where Jesus sends His apostles to make disciples of all nations (Matthew 28:19). This directive signifies the inclusive scope of the gospel, suggesting that the message of salvation through Christ is for everyone, regardless of ethnic or cultural backgrounds.

Additionally, Acts 15 demonstrates the early church's realization that Gentiles could be saved apart from the Law of Moses, illustrating that the gospel was not limited to ethnic Israel but was intended to draw people from all nations into one body of believers. The Apostle Paul elaborates on this mystery of the church, presenting the concept of the body of Christ as ethnically diverse yet unified (Galatians 3:28). In his writings, Paul consistently emphasizes that in Christ, there is neither Jew nor Gentile, reinforcing the idea that the gospel message transcends all barriers. Thus, the biblical evidence firmly establishes that salvation is available to all who believe.