“It may be said that the kingdom (of God) designates believers in their relation to God as ruler, the church believers in their separateness from the world and their organic union with one another. Or, that the church designates believers in their attitude of worship towards God, the kingdom, believers in their ethical activities towards one another. Or again, that the church designates the people of God from the point of view of their calling to be God’s instrument in preparing the way for and introducing the ideal order of things, the kingdom, the same people of God so far as they possess the ideal order in principle realized among themselves. These and similar distinctions have their doctrinal usefulness and are unobjectionable, so long as they do not obscure the fact that the kingdom, as well as the church, is circumscribed by the line of regeneration, and that the invisible church itself is that which determines its inner essence, its relation to God and Christ, a true kingdom since it consists of those over whom the Messiah rules as the representative of God.”
Geerhardus Vos
The Teaching Of Jesus Concerning the Kingdom & the Church — p.159 -160
“From this, however, it does not necessarily follow, that the visible church is the only outward expression of the invisible kingdom. Undoubtedly the kingship of God, as his recognized and applied supremacy is intended to pervade and control the whole of human life in all its forms of existence. This the parable of the leaven plainly teaches. These various forms of human life have each their own sphere in which they work and embody themselves. There is a sphere of science, a sphere of art, a sphere of the family and of the state, a sphere of commerce and industry. Whenever one of these spheres comes under the controlling influence of the principle of the divine supremacy and glory, and this outwardly reveals itself, there we can truly say that the kingdom of God has become manifest.”
Geerhardus Vos
The Teaching Of Jesus Concerning the Kingdom & the Church — p.162 -163