Mission 03 · The Law
The Moral Argument
Does objective morality point to a Moral Lawgiver?
Mission 03
The Law
Separate a convention (driving on the right) from a law (crushing the innocent), and say why a real ought needs a real Lawgiver.
- Walk the slides
Philosophical arguments for faith
- Drill the scene
“Morality is just like driving on the right.”
- Carry the card
Moral law
- Speak the line out loud once
“They show that the work of the law is written on their hearts, while their conscience also bears witness.”
See it
Shorts, slide decks, infographics, and dossier plates that belong with this page.
The case
We do not merely have preferences; we have obligations. We know that some things are wrong even if a culture celebrates them, and we know it in our bones when we are the ones wronged. C.S. Lewis called this the Moral Law. William Lane Craig’s syllogism is simple: if God does not exist, objective moral values and duties do not exist; they do exist; therefore God exists. Relativism cannot survive contact with real evil—or with the relativist’s own outrage.
Moral argument
- 1.If God does not exist, objective moral values and duties do not exist.
- 2.Objective moral values and duties do exist.
Therefore God exists.
Talking points
- Everyone lives as if some things are really wrong—torture of children, betrayal, genocide—not merely ‘unfashionable.’
- Driving on the right is a convention. It changes by country. Crushing the innocent does not behave like a traffic rule.
- Evolution can explain why we feel moral; it cannot explain why we are obligated. A survival instinct is not a duty.
- If a Lawgiver exists, we are not random biological accidents. Dual nature: physical flesh and a spiritual dimension, made in a divine image.
- If we are only animals, violence is the strong surviving. If we are made, evil is a real rebellion against a design — not weather, not a tactic.
- Atheism can describe behavior. It cannot ground ‘ought.’ The argument does not say atheists cannot be moral. It says they cannot make sense of why morality is binding.
Say this
I’m not saying you need to believe in God to know right from wrong. I’m saying that if there is a real right and wrong—something that is true whether we like it or not—then there has to be a moral reality deeper than human opinion. A Moral Law needs a Moral Lawgiver.
If they say…
“Morality is just cultural.”
Cultures disagree about application, not about the deepest principles. No culture praises cowardice as courage. And when cultures do clash—say, on slavery—we do not shrug; we argue that one of them is wrong. That only makes sense if there is a standard above both.
“Euthyphro: is it good because God wills it, or does God will it because it is good?”
A third option: God wills the good because His nature is good. Goodness is neither arbitrary decree nor a standard above God. It is what God is.
Scripture
“The work of the law is written on their hearts.”
“He has told you, O man, what is good… to do justice, and to love kindness, and to walk humbly with your God.”
“Woe to those who call evil good and good evil.”
Sit with this
- When were you last treated unfairly? Did you respond as if a real rule had been broken?
- How would you answer a friend who says, ‘Don’t impose your morality on me’?