7. Then suffering purifies us and develops us and prepares us for work we could not otherwise do. "Tribulation worketh _patience_." What _excellent training_ I got when I rubbed the engine for a dollar and a half a day. It brought patience and resignation and a better preparation for the work I am doing than any other sort of experience, perhaps, could have given me. REVELATIONS XXI: 3. "And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and He will dwell with them, and they shall be His people, and God Himself shall be with them, and be their God." The subject suggested by the text is, the future and final conquest of the world by the Church of Christ, and the rest and reward of that church in Heaven. And the Scriptures do teach that, in time, all nations shall learn righteousness. The time is coming when neighbor shall not say to neighbor, "Know ye the Lord," but when all shall know Him, from the least to the greatest; and the knowledge of God shall cover the earth, as the waters cover the deep. When this blessed time is to be, and what are to be the signs of its approach, are not questions for us to attempt to discuss here to-day, though we may be allowed to say that the Gospel is being preached to more people to-day that at any former period in the history of the church. There is a missionary zeal in the church to-day that has not been paralleled in all her history. There is not only a readiness among heathen people to hear the Gospel, but there seems to be a positive hunger for it, and within the last few years the Gospel has penetrated to the interior of nations and continents that were previously inaccessible. Certainly the church is more aggressive and bold in her plans and operations to-day than ever before. And if it be a prophecy of the not distant conquest of the world to the reign of Christ, we take courage, and say: "God speed the day!" It is well for us to pause now, and to reflect upon the reward promised to us in the end of our course. We do not give enough attention to this. To study about it; to learn what we do not know concerning it; to realize the unspeakable blessedness of that state would make us more patient in waiting, more cheerful in suffering, more earnest and active and untiring in our efforts to help others to the attainment and enjoyment of it. Heaven, then, is represented in the Bible as a place of _perfect beauty, perfect security, perfect rest and perfect joy_. It is so represented as to appeal to the desires and longings of all classes of people. To the inhabitant of the city, what could be more pleasing than the freedom and freshness and beauty of the country? So heaven is described as having its landscapes, with its fruit-bearing trees, its crystal rivers and gurgling fountains. But for the rustic peasant, it is said to be a resplendent city, with walls of sapphire and gates of pearl and streets of gold.