Theonomy simply means God's law and implies the abiding validity of the moral law in every sphere of life, including the civil, so that the general equity of those laws with civil or judicial implications should be candidly applied in society.Mission of God, 62
My theonomic friends are wont to drive us to one of two choices, "Autonomy or theonomy!" And of course they are precisely right. We will either have man's law, or God's law and only a fool would choose man over God. The question then rightly understood isn't whether we ought to have law as God would have us have it. The question instead is what law would God wish us to have... be careful not to heed those critics who have precious little understanding of theonomy...