[The] absolutely theocentric character of the kingdom of God in Jesus’ preaching…implies that its coming consists entirely in God’s own action and is perfectly dependent on his activity. The kingdom of God is not a state or condition, not a society created and promoted by men (the doctrine of the ‘social gospel’). It will not come through an immanent earthly evolution, nor through moral action; it is not men who prepare it for God. All such thoughts mean a hopelessly superficial interpretation of the tremendous thought of the fullness and finality of God’s coming as king to redeem and to judge.
—Herman Ridderbos, The Coming of the Kingdom