Definition:
Righteous defense refers to the act of protecting oneself, others, or one's community in a manner that aligns with biblical principles of justice, morality, and faithfulness to God's commandments. It involves the discernment of when and how to engage in defense while maintaining a heart aligned with God's righteousness.

Biblical Context:
The concept of righteous defense is woven throughout the Scriptures, where God's people are often called to stand firm against evil while upholding justice and righteousness. The Bible provides numerous examples and teachings that guide believers in understanding when defense is justified and how it should be conducted.

Old Testament Examples:
1. Abraham's Rescue of Lot (Genesis 14:14-16): Abraham's pursuit and defeat of the kings who captured his nephew Lot is an early example of righteous defense. Abraham acted to rescue his family and restore peace, demonstrating courage and reliance on God.

2. David and Goliath (1 Samuel 17): David's confrontation with Goliath is a classic example of righteous defense. David, a young shepherd, defended Israel not for personal glory but to uphold the honor of God, declaring, "The battle is the LORD's" (1 Samuel 17:47).

3. Nehemiah's Defense of Jerusalem (Nehemiah 4:14): When rebuilding the walls of Jerusalem, Nehemiah encouraged the people to defend their families and city, saying, "Do not be afraid of them. Remember the Lord, who is great and awesome, and fight for your brothers, your sons and daughters, your wives and your homes" (Nehemiah 4:14).

New Testament Teachings:
1. Jesus and the Temple Cleansing (John 2:13-17): Jesus' cleansing of the temple is an act of righteous defense of God's holiness. He drove out the money changers, declaring, "Stop turning My Father’s house into a marketplace!" (John 2:16).

2. Paul's Defense of the Gospel (Philippians 1:16): The Apostle Paul often defended the truth of the Gospel against false teachings and accusations. He wrote, "The latter do so out of love, knowing that I am appointed for the defense of the gospel" (Philippians 1:16).

Principles of Righteous Defense:
1. Reliance on God: Righteous defense requires dependence on God's strength and guidance. Believers are called to trust in the Lord rather than their own might (Psalm 20:7).

2. Justice and Mercy: Defense should be conducted with a heart of justice and mercy, reflecting God's character (Micah 6:8). It should not be driven by vengeance or hatred.

3. Peace as the Goal: While defense may involve conflict, the ultimate aim is peace and reconciliation. Romans 12:18 encourages believers, "If it is possible on your part, live at peace with everyone" .

4. Spiritual Armor: Ephesians 6:10-18 describes the armor of God, emphasizing that spiritual readiness and righteousness are crucial in standing firm against evil.

Ethical Considerations:
Righteous defense raises ethical questions about the use of force, the protection of the innocent, and the pursuit of justice. Believers are encouraged to seek wisdom through prayer and Scripture, ensuring their actions align with God's will and the teachings of Christ.

Conclusion:
Righteous defense is a complex and nuanced topic within the Christian faith, requiring believers to balance justice, mercy, and reliance on God. Through biblical examples and teachings, Christians are equipped to discern when and how to engage in defense that honors God and upholds His righteousness.