Abraham Kuyper:"If God is sovereign, then his lordship must extend over all of life, and it cannot be restricted to the walls of the church or within the Christian orbit. The non-Christian world has not been handed over to Satan, nor surrendered to fallen humanity, nor consigned to fate. God’s sovereignty is great and all-dominating in the life of that unbaptized world as well. Therefore Christ’s church on earth and God’s child cannot simply retreat from this life. If the believer’s God is at work in this world, then in this world the believer’s hand must take hold of the plow, and the name of the Lord must be glorified in that activity as well."
Foreword to Common Grace