The principle of eye for an eye, known in legal history as lex talionis, appears in Exodus 21:24 and Leviticus 24:19-20. Far from encouraging vengeance, this Old Testament law actually limited it—establishing proportional justice so that punishment matched the offense exactly, preventing the escalation of blood feuds. In the ancient Near East, a minor injury could trigger disproportionate retaliation; this law ensured a tooth for a tooth, not a life for a tooth. It was primarily a guideline for judges, not personal revenge. Jesus addressed this directly in Matthew 5:38-39, not to abolish justice but to call His followers to a higher ethic: rather than demanding their legal rights in personal offenses, they should respond with unexpected grace. Romans 12:19 grounds this in theology—vengeance belongs to God, not to individuals. The progression from Exodus to Matthew shows how retributive justice finds its completion in mercy without denying that justice matters. God remains the righteous judge while calling His people to reflect His character through forgiveness and reconciliation.