Chapter II. The Unity Of The Church. 1 9 the Imperial City! In this Epistle he insists upon unity of faith in the following emphatic language: "Be careful to keep the unity of the Spirit in the bond of peace; one body and one Spirit, as you are called in one hope of your calling; one Lord, one faith, one baptism, one God and Father of all, who is above all, and through all, and in us all."18 As you all, he says, worship one God, and not many gods; as you acknowledge the same Divine Mediator of redemption, and not many mediators; as you are sanctified by the same Divine Spirit, and not by many spirits; as you all hope for the same heaven, and not different heavens, so must you all profess the same faith. Unity of government is not less essential to the Church of Christ than unity of doctrine. Our Divine Saviour never speaks of His Churches, but of His Church. He does not say: "Upon this rock I will build my Churches," but "upon this rock I will build My Church,"19 from which words we must conclude that it never was His intention to establish or to sanction various conflicting denominations, but one corporate body, with all the members united under one visible Head; for as the Church is a visible body, it must have a visible head. The Church is called a kingdom: "He shall reign over the house of Jacob forever, and of His kingdom there shall be no end."20 Now in every well-regulated kingdom there is but one king, one form of government, one uniform body of laws, which [007] all are obliged to observe. In like manner, in Christ's spiritual kingdom, there must be one Chief to whom all owe spiritual allegiance; one form of ecclesiastical government; one uniform body of laws which all Christians are bound to observe; for, "every kingdom divided against itself shall be made desolate."21 Our Savior calls His Church a sheepfold. "And there shall Ephes. iv. 3-6.