A distinctive identifying feature of the work of a particular entity. A Christian ministry working for godly cultural change across the entire spectrum of life. Scripture's mandate and Chalcedon's stated purpose require the perpetuation of that signature in the way of a continual conquering of culture for Christ. The second question is answered in the third.
All law expresses somehow a religious faith, a faith in justice or righteousness.
The religion behind the law may be Buddhism, Mohammedanism, Shintoism, humanist, or Christianity, but all laws, and their concepts of justice, are religious facts. This makes obvious how dangerous and absurd it is to dismiss the need for or the idea of a Christian civil government. From the 66 books of the Christian Bible, we learn both that God declares no man to have been justified apart from God's gracious work of salvation in Christ Jesus and that true civil and social justice is known only in the application of God's law-word. Further, while no man can be neutral toward God and His Word, those who have been declared to be justified are those who will be doing justice in the nation. It follows then that justice in the nation will advance as God's kingdom advances.