“One peculiarity of Theonomic postmillennialism is its emphasis on the application of Biblical law to every area of human life as the means of bringing about millennial blessing.”
This question has to do with the limits of human authorities and more particularly with the jurisdictional boundaries of the civil government.
Why is the civil magistrate not to enforce the “first Table of the Law”? Because he is somehow not subject to the Word of God? No! Because it’s not his job!
The Theonomic use of the Mosaic judicial law must be rejected. It obscures the proper relevance of the judicial law to the church, the visible and spiritual kingdom of Christ, in its attempt to apply it to non-Theocratic civil governments.
If we are permitted to exegete the Westminster Confession by means of its admitted historical precedents, there need be no doubt that it is not a Theonomic document.
Etymologically, theocracy means “God-rule.” Theologically, however, defining this word is much more difficult.
“One major difficulty in critiquing Theonomy is the diversity of thought within the ranks of Christian Reconstructionists. There is a substantial difference of opinion among ‘Theonomists’ as to the specific application of Old Testament laws.”
It is not my goal to provide a thorough overview of Christian Reconstruction. Others have done this well. Something must be said, however, about the basic sources of this movement and the major tenets of Theonomy or Christian Reconstruction.
If Theonomists were only arguing for a return to the Ten Commandments as the moral law for human life, right-minded Reformed thinkers would not and could not reject it. Theonomy—though it means God’s law literally—means much more and much else theologically.