Is the morality described in the Old Testament arbitrary or divinely grounded?

Welcome to the debate arena! Today's topic: "Is the morality described in the Old Testament arbitrary or divinely grounded?". Your opponent's style: thomas aquinas

"In 1 Samuel 15, God commands Saul to completely destroy the Amalekites: man and woman, child and infant alike. The stated justification is not personal wrongdoing by every individual killed, but the collective judgment of Amalek for its hostility toward Israel. This presents a profound moral and theological dilemma: if justice requires that each person is judged according to their own actions—as affirmed in Ezekiel 18, where 'the soul who sins shall die,' and Romans 14, which states that each person shall give an account of themselves before God—then how can those incapable of moral choice, such as infants, be included in a judgment for sins they neither committed nor understood? The question is not whether God has the power to do this, but whether an action can be considered perfectly just when it brings death upon those who bear no personal guilt. If God is the source of morality itself and is described as perfectly good and righteous, then His judgments should represent the highest standard of justice, not a suspension of the very principles of accountability and mercy that define justice. Therefore, the destruction of Amalek raises one of the deepest questions in theology: how can divine command to destroy the innocent be reconciled with the claim that God is perfectly just and benevolent?"

You've constructed an elegant trap, but it rests on a false premise: that justice requires individual moral culpability. Consider instead that God's justice operates at a different register than human forensic morality. A nation is a moral unit. When Amalek wages war against Israel as a people, the response is necessarily collective—this is how nations have always operated, and Scripture affirms it. Your reliance on Ezekiel 18 and Romans 14 concerns *individual* salvation, not national judgment. God judges differently at different scales. Why assume the personal accountability standard applies to existential national conflicts?

"Your distinction between individual and collective judgment is important, but it does not resolve the central dilemma—it merely relocates it. The question is not whether nations can be judged collectively in a political sense; history clearly shows that they can. The question is whether collective judgment can justly include individuals who lack moral agency and played no role in the offense being judged. A nation may bear responsibility as a whole, but a perfectly just judge must still distinguish between those who are responsible for wrongdoing and those who are not. If a human king ordered the execution of every citizen of an enemy nation, including infants, we would not call that justice simply because the victims belonged to the same political community as the guilty. We would call it collective punishment. The fact that God possesses greater authority does not automatically demonstrate that the action is morally consistent with His own nature, because authority answers the question 'who has the right to act,' while justice answers the question 'what is right to do.' Furthermore, appealing to different scales of judgment creates a difficulty: if individual accountability is a reflection of God's perfect justice, why would that principle disappear precisely when the stakes become greater? If anything, a higher form of justice should contain the lower principles of fairness, not override them. A nation can be judged collectively through consequences such as defeat, exile, or the removal of its power, but the deliberate destruction of those incapable of moral choice raises a separate question. Therefore, the issue is not a misunderstanding of national judgment versus individual salvation. The issue is whether a perfectly good being can justly impose the ultimate consequence—death—upon those who possess no capacity for moral responsibility. If God's justice is higher than human justice, it must be higher in its fairness and moral perfection, not merely different in its standard."

You're smuggling in an assumption: that death is the ultimate harm. But in theistic metaphysics, death isn't annihilation—it's transition. An infant entering eternity hasn't suffered injustice; it's been spared a fallen world. Your parallel to human kings fails because human kings have no authority over souls or afterlife. God's judgment encompasses what comes after; yours doesn't. A perfectly just judge can impose earthly consequences on the collective *because* He knows the ultimate fate of each soul. You're measuring divine justice by human legal standards that assume death is final.

Your argument shifts the discussion from whether the killing is harmful to whether the killing is permissible, but it does not resolve the question of justice. Even if death is not annihilation, it does not follow that causing death is morally neutral. The fact that a person may enter a better state afterward does not automatically justify the act that brought about their death. Consider the principle you are appealing to: that God knows the ultimate destiny and condition of every soul. But this actually creates a deeper difficulty. If God possesses perfect knowledge of each person's eternal state, then He is not merely responding to circumstances—He is intentionally choosing the circumstances that lead each person there. The question becomes not 'can God redeem suffering?' but 'why was the suffering or death necessary as part of the chosen means?' Furthermore, saying that an infant is spared a fallen world does not answer the question of justice; it creates a moral asymmetry. If early death guarantees a blessed eternity, then why is the same principle not applied universally? If preventing a person's exposure to sin and suffering is a greater good, then allowing some infants to die while allowing others to live through decades of suffering requires an explanation. The argument cannot simply be 'God knows best,' because that would make any action morally unfalsifiable. More importantly, the defense risks undermining the very concept of judgment. If the infants of Amalek are not being punished because they are innocent and are instead receiving a benefit through death, then their death is no longer an act of judgment against Amalek—it is an act of providential intervention upon individuals. But that creates another question: why is their death tied to the punishment of the guilty? Why use the death of the innocent as part of a national judgment at all? Your distinction between divine and human justice is also incomplete. The difference between God and humans may explain why God has greater authority, knowledge, and power, but it does not explain why principles such as justice, mercy, and righteousness cease to apply. If 'good' means merely 'whatever God does,' then calling God good becomes circular: God is good because whatever God does is good. But if God's goodness has meaningful content, then we can still ask whether an action reflects that goodness. Finally, the analogy to human kings does not fail merely because human kings lack authority over souls. The analogy was never about authority; it was about moral reasoning. A human ruler cannot justify killing an innocent child by saying, 'I know their future and perhaps death will benefit them.' We would consider that a dangerous corruption of justice precisely because it allows a powerful being to override the individual's own moral status. If God is perfectly good, His greater knowledge should produce a higher justice, not a justice where innocence becomes irrelevant. Therefore, the central issue remains: not whether God can transform death into eternal life, but whether a perfectly just being would deliberately bring about the death of morally innocent persons as a means of judging others. If divine justice is truly superior to human justice, it must preserve the foundation of justice—the distinction between the guilty and the innocent—even when applied on a cosmic scale."

You've built an elaborate cage, but you're trapped inside it. Your entire argument assumes justice must operate on *individual* culpability—then declares circular any system that doesn't. But collective judgment *is* justice when the collective acts as one organism. Israel faced genocide from Amalek. God's response targeted the threat, not souls. Your demand that divine justice mirror human forensic standards isn't logic—it's anthropomorphism. You won't accept "God knows better" because you've already decided what justice must look like. That's not reasoning; that's legislation.