Before critiquing theonomy, we need a good definition. Some people today who use the word “theonomy” don’t mean anything more than “God’s law” because the etimology of the word theonomy is “theos” which means God, and “nomos” which means law. They only want to affirm that God’s law is supreme over man’s law. And they’re right about that. God’s transcendent moral law is the norm that norms all norms. Governmental laws should always be consistent with God’s law and human law must never violate God’s law.
But in this post, I’ll be using the word “theonomy” in a more technical sense, which is rooted in the historic usage of the term.