He beheld the city and wept over it; its sins, its wickedness, its rejection of God's love, drew tears from His eyes, and He said, "If thou hadst known, even thou, at least in this thy day, the things that belong unto thy peace! but now they are hid from thine eyes." And as I think of that, I learn the second grand essential for us of a keen sense of sin. Oh! if you realize more and more the wickedness of this great City, you would be more and more constrained to work, so as to let others know of that Saviour who has proved so precious to you. Lastly, let me refer you to another Mission--the Mission to the city of Corinth. It was the centre of the commercial world; through it flowed all the wealth from the East and the West; and as it was famous for its wealth, so it was notorious for its vice. We are told of the Apostle Paul visiting that city for the first time, and being discouraged; but we are told that the Lord appeared to Paul in a vision and said, "Fear not, Paul; be not afraid; I am with thee. I have much people in this city." So he was encouraged in his work. He went forward in the cause of the Lord with his hands strengthened with the blessed assurance that the Lord was with him. Let me, in conclusion, remind you what a glorious work is performed in this Society. If we are only true to God, God will be true to us. His promise is sure. His people shall be gathered out. As we look at the various discouragements, difficulties, and trials with which we have to contend, we can go forward with hope and firm assurance, remembering that blessed promise, that He has prepared for us a city. * * * * *