Among mainstream Christianity, a growing sentiment endorses Christians taking up weapons for their own defense or the defense of others. Proponents argue that Christians are justified in killing in self-defense or in anticipation of a crime, believing society would be safer with a more fully armed citizenry. However, the sixth commandment is clear: You shall not murder (Exodus 20:13). The question remains whether killing to protect life or property falls into a gray area. God's instruction to the children of Israel, who were both a nation and a religious congregation, recognized only two classifications of killing: accidental and intentional. Self-defense is not listed as a possibility. Accidental death occurs without intent to kill or harm, as illustrated in Deuteronomy 19:5, where a man unintentionally causes a neighbor's death while cutting timber. Intentional killing, defined as murder, occurs when there is foreknowledge of potential harm, as stated in Exodus 21:12: He who strikes a man so that he dies shall surely be put to death. Firing a gun with the knowledge it could kill is considered murder under God's law, regardless of the threat posed by the other person. Human nature often insists on a self-clause, suggesting God's law can be suspended when it conflicts with perceived best interests. Yet, God does not allow the suspension of His law, even under threat. Intentionally taking a life in defense of self prioritizes self over God, demonstrating enmity against Him, as described in Romans 8:7. In doing so, one acts as judge, jury, and executioner, presuming authority not granted by God, who reserves the right to determine right and wrong. Under the New Covenant, God does not promise complete protection from violence, as seen in various scriptures. Faithful Christians may suffer violence, either as a consequence of actions or as part of God's purpose, which may not be immediately discernible. Yet, if called by God and loving Him, we have His promise that all things work together for good (Romans 8:28). Some view God's prohibition against killing as weak, but true strength lies in abiding by His law and trusting in His will, rather than relying on self. Faith in God's sovereignty determines our responses, even when threatened, believing in His ability to accomplish His purpose. Exodus 22:2-3 clarifies that killing a thief in the dark may be considered accidental due to impaired judgment, but killing in clear circumstances is intentional and deemed murder. Jesus Christ teaches that murder begins in the heart with intent, reinforcing that intentional killing, even in defense, is against God's law (Matthew 5:21-22).