Perhaps in an effort to be ecumenical, Dr. K. linked to a great essay by David Engelsma of the Protestant Reformed Church (which was to Kuyperianism what the OPC was to the Bible Presbyterian Synod). In a longish piece, Engelsma writes the following about the kingdom of God (there is much more to the essay than this and is worth reading in its entirety).
1) It is spiritual in nature:
The kingdom of God is the church. The living reign of God in Christ by the Word and Spirit is the church. The realm is the sphere of the church. The citizens are the members of the church. The blessings of the kingdom are poured out on and enjoyed in the church.
There is a truth about the kingdom of God that is basic to the confession that the kingdom of God is the church. This is the truth that the kingdom of God is spiritual. Spirituality is an essential quality of the kingdom of God. Knowledge of the spiritual nature of the kingdom is essential to the right belief about the kingdom. The great errors about the kingdom that are afoot today have this in common, that they view the kingdom as earthly, as political, as carnal. This is the gross, wicked error of dispensationalism, that makes the kingdom of God an earthly Jewish world-power. This is the gross, wicked error of the liberals, that makes the kingdom an earthly, one-world government, which will satisfy all the fleshly desires of godless mankind: plenty to eat and drink; the gratification of every perverse sexual lust; the elimination of all inconvenient persons—unborn babies, old people, sick people, and, eventually, orthodox Christians; and the eradication of war and social strife.
Viewing the kingdom as carnal is also the error of those who suppose that the most important realization of the kingdom of God will be an earthly, political, visibly glorious Christian empire that Christ will rear up in the world before His second coming. Yes, they will agree, somewhat impatiently, the church is a manifestation of the kingdom at present. But the superior manifestation of the kingdom of God, the Messianic kingdom in its best and fullest form, the kingdom that finally fulfils the prophecy of the Old Testament in Psalm 72 and similar passages will be that future, earthly world-power that will have Christianised all nations.
Against these errors and on behalf of the right understanding of the kingdom of God, we must believe and confess that the kingdom of God is spiritual.
In his book, Thy Kingdom Come, Rousas J. Rushdoony, father of the Christian Reconstruction movement, says this: “The reduction of the kingdom of God to a spiritual realm is in effect a denial of the kingdom” (p. 178). I appreciate that Rushdoony sees the fundamental issue concerning the kingdom and states this issue bluntly. But in flat contradiction to this statement, I maintain that Scripture teaches that the kingdom of God in Jesus Christ is essentially and entirely a spiritual realm. I maintain further that every denial of the spirituality of the kingdom is a denial of the kingdom of God.
It is significant that Rushdoony utters this denial, that the kingdom is spiritual, in the context of his denial that the church is to be identified with the kingdom: “The church … is not to be identified as the kingdom of God, but simply as a part of the kingdom” (p. 178). Mr. Rushdoony practiced what he preached. Writing in 1991, fellow Christian Reconstructionist Gary North informed the world that “Rushdoony does not belong to a local church, nor has he taken communion in two decades, except when he is on the road, speaking at a church that has a policy of open communion or is unaware of his non-member status” (Westminster’s Confession, p. 80).
In explanation of the spirituality of the kingdom of God, negatively, the kingdom is not earthly in nature. It does not consist of dominion by physical force—the sword and its terror. It does not promise or provide earthly blessings and goods—earthly peace and material prosperity. It does not claim any earthly country for its territory—Palestine, North America, Scotland, or the Netherlands. It does not possess or display any earthly glory—power, weapons, numbers, size, or impressive leader (the Christ of the biblical gospel of the cross is not impressive to the natural man). Indeed, its citizens are not citizens by virtue of any earthly characteristic, whether race, sex, nationality, status, or achievement.
In keeping with its unearthly nature, the kingdom of God cannot be known by man’s physical senses. This is literally what Jesus said to Nicodemus in John 3:3: “Except a man be born again, he cannot see the kingdom of God.” Christ taught the same thing in Luke 17:20 when, in response to the Pharisees’ question, when the kingdom of God should come, He said, “The kingdom of God cometh not with observation.” The kingdom comes without “observation” in that the manner of its coming is invisible.
2) This kingdom expands through the lives of its citizens:
The rule of God in the life of the believer begins with his own very personal, spiritual life and experience. The kingdom comes more and more in him when he abhors himself as a sinner, trusts alone in the cross of Christ, loves his king, seeks the glory of God and the good of the neighbour rather than himself, and makes some progress in his fight against doubt, envy, bitterness, discontent, drunkenness, illicit sexual desire, or whatever may be his own besetting demon.
That demon, by the way, promotes the kingdom of Satan in the believer’s life. The two kingdoms clash most violently and with the highest stakes, not out there in society in the culture wars. That clash is mere child’s play in comparison with the war of the two kingdoms in the soul of every Christian.
To the noisy champions of a grand, showy, outward kingdom that is one day to Christianise the world, this personal spiritual extension of the kingdom is of little account. But to God, Scripture, and the Heidelberg Catechism—as to the battling believer—it is first and basic. The apostle of Christ virtually defines the kingdom in terms of its experience by the individual church member: “For the kingdom of God is not meat and drink; but righteousness, and peace, and joy in the Holy Ghost” (Rom. 14:17). That the kingdom comes in the life of an elect sinner is a wonder of the almighty, life-giving, gracious power of the Holy Spirit.
The kingdom comes first and importantly in the soul and experience of the child of God. But then it necessarily advances into the active life of the Christian in the world in every sphere and ordinance, with body and soul and with all his gifts.
As a citizen of the kingdom, he is a member with his family of the church, indeed of the purest manifestation of the church; is diligent in church attendance; submits to Christ’s authority in the elders; uses his gifts for the good of the congregation and denomination; and lives in peace with the other members as much as possible.
As a citizen of the kingdom, the Reformed man marries in the Lord, loves his wife, honours marriage as a lifelong bond, rears his children in the truth, and rules his household well.
As a citizen of the kingdom, the Reformed woman marries in the Lord, submits to her husband with due obedience, honours marriage as a lifelong bond, is a “keeper at home,” brings up her children in the faith, and cooperates with her husband’s rule.
As citizens of the kingdom, the parents establish good Christian schools, to carry out the godly instruction of the children of the kingdom that they themselves cannot give.
As a citizen of the kingdom, the man labours faithfully in his job, whatever it is, high-powered or menial, as to the Lord, to provide for his own needs and for those of the kingdom. This includes that he recognizes and submits to the authority of his employer. If he is the employer, he treats his workers justly and pays them well.
As a citizen of the kingdom, the believer honours civil government as God’s servant, submits to the authority of the state and its functionaries, obeys all laws that do not require him to disobey God, and pays the taxes that the state decrees. If he is the ruler, which is perfectly proper, although quite rare, he keeps order in society, legislates in accordance with the law of God for national life, punishes those who disturb the common order, and protects those who are outwardly law-abiding.
As a citizen of the kingdom, the member of the church is honest and kind in his dealings with his neighbours, whether believing or unbelieving, and helpful to the needy as he has opportunity. As much as possible, he lives in peace with all men.
As a citizen of the kingdom, the Christian freely uses and enjoys the good creation of God his king, always in service of the kingdom and to the glory of the king of the kingdom. This creation, freely used and enjoyed, includes his own natural gifts of music, or art, or scientific study, or poetry, or gardening, or athletics, and much more besides.
Thus, in the active life of the member of the church the kingdom extends into all areas of human life in all the world.
I suspect this meets with Dr. K’s approval because Engelsma promotes Christian schools. As much as this might wind Zrim up, I could certainly live with talk about the necessity of Christian schools if it came with language that also sharply distinguished the kingdom of God from culture wars, politics, the arts, and word and deed. So while the pow wow on Mount Lookout might have suggested the basis for lessening the conflict between neo-Calvinists and two-kingdom advocates, Engelsma’s position looks much more promising.