Although most Christians agree that war is sometimes necessary in self defense (See the ATQ article When Is a War Just?), and nominal “Christians” have often wrongfully launched or participated in wars of aggression, genuine, New Testament Christianity would never be the cause of war.
The New Testament is neither hostile towards non-Christians, nor does it rationalize aggression against them.
Christianity’s core beliefs are clearly defined by the New Testament:
1. Humanity is sinful and needs redemption.
2. God loves the entire human race, regardless of race, gender, or cultural background.
3. The perfect life and atoning death of Jesus Christ provided our redemption.
4. Jesus is the “firstborn of many brethren” (Romans 8:29), the model for Christian living (John 17:16-26).
The New Testament views all people—including Christians—as sinners in need of forgiveness and calls on them to repent their sins, accept God’s free gift of salvation through Jesus Christ, and live gratefully, lovingly, and obediently with Jesus as their model. It portrays all people as equal in spiritual worth, whether rich, poor, male, female, slave, or free (Acts 17:26; Galatians 3:28; Colossians 3:9-11; 1 Peter 2:9). It also separates spiritual authority from governmental authority (Mark 12:16-17, John 19:11, John 18:36-37).
The New Testament requires Christians to be concerned for their enemies (Matthew 5:44; Luke 6:20-34; Acts 7:60; 1 Corinthians 13:1-3, 13; Ephesians 5:1-2); to shun self-righteousness (Matthew 7:3-5; John 8:3-11; Romans 5:8-11; Galatians 6:1); to repudiate the idols of ethnic pride and privilege (Matthew 8:5-13; Luke 10:30-37; Luke 17:11-19; John 4:9); to refrain from judging other people’s hearts (Matthew 13:24-30); to realize that one’s responsibility to God is of a higher order than one’s responsibility to the state (Mark 12:13-17); and to forgive repentant sinners and forswear revenge against them (Luke 23:34; Romans 12:14-21; Ephesians 4:31).
Only when flagrantly distorted and misapplied can the words of the New Testament be taken to imply that Christians should forcefully impose their faith on others. The gospel of Jesus Christ commands Christians to overcome evil with good; realize that love and forgiveness are essential to the establishment of God’s kingdom; be conscious of the distinction between the kingdom of God and the kingdom of the world; and be humble as sinners who have not only been forgiven but graciously given the power to live an obedient life.