Thou Shalt Not Kill

The shape of the practice

"Thou shalt not kill" (Exodus 20:13). Four words in English, two in Hebrew — the shortest commandment, guarding the largest thing: a human life. Deuteronomy 5:17 repeats it exactly. The reason runs back to creation: "for in the image of God made he man" (Genesis 9:6). To destroy a human being is to strike at the image of God Himself. That is what makes every person — the unimpressive, the inconvenient, the enemy — untouchable.

Then Jesus does something staggering with it. "Ye have heard that it was said by them of old time, Thou shalt not kill; and whosoever shall kill shall be in danger of the judgment: But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire" (Matthew 5:21-22). Murder does not begin with a weapon; it begins with anger and contempt — Raca, "worthless." John draws the straight line: "Whosoever hateth his brother is a murderer" (1 John 3:15). The commandment protects life all the way down to the heart where the taking of it is first rehearsed.

What it is not

• It is not kept by never having killed anyone. By Jesus' reading, the commandment indicts the grudge, the nursed resentment, the contempt behind the eye-roll. Nearly everyone breaks this commandment weekly.
• It is not a condemnation of all anger. "Be ye angry, and sin not: let not the sun go down upon your wrath" (Ephesians 4:26). Anger at genuine evil can be righteous; anger that is cherished, fed, and slept on turns toxic.
• It is not only about deeds. Words carry the spirit of murder — Raca, "Thou fool," the comment written to wound, the nickname that erases someone's dignity. The tongue can kill a reputation, a spirit, a child's sense of worth (James 3:5-9).
• It is not merely a prohibition. The commandment has a positive face: where life can be protected, fed, defended, or preserved, refusing to act is its own way of failing it (Proverbs 24:11-12, James 4:17).

Five practices for the week

1. Track your contempt for one day. Every "idiot," every muttered insult in traffic, every dismissive scroll past a person — write them down. You cannot repent of what you refuse to see.
2. Go and be reconciled first. Jesus makes peace with your brother more urgent than worship itself: "first be reconciled to thy brother, and then come and offer thy gift" (Matthew 5:24). If someone has something against you, take the first step this week.
3. Starve the anger feed. Identify the accounts, channels, or shows that reliably farm your outrage and contempt, and cut them off for seven days. Notice what happens to your heart.
4. Bless one enemy by name. "Love your enemies, bless them that curse you... and pray for them which despitefully use you" (Matthew 5:44). Pick the person you most resent and pray for their good — specifically, out loud, more than once.
5. Do one thing that guards a life. Check on someone isolated, feed someone hungry, sit with someone despairing. The commandment is kept not only by restraint but by protection.

Reflection prompts

• Who am I angry with right now, and how long have I been feeding it?
• Whose dignity do I casually erase — in traffic, online, at work — because they cannot hear me?
• Is there anyone who, if I am honest, I would quietly be glad to see fail or suffer?
• What would change this week if I treated every person I meet as the image of God?