Will the United Nations solve all the world's problems?
No. The United Nations and similar human efforts will not solve all the world's problems. Scripture indicates the world may think it will continue forever and that such institutions will bring solutions, but there will be no peace on earth until the Prince of Peace comes.
Les explains that the world may believe it will keep going forever and that the United Nations and similar efforts will solve all the world's problems. He answers emphatically, 'No it's not.' There will be no peace on this earth until the Prince of Peace comes. He also notes that praying for the peace of Jerusalem means praying for the Lord's coming, because Jerusalem will have no peace until the Prince of Peace is back in Jerusalem. John in Revelation echoes this with 'come quickly,' and we know that when He appears, we shall be like Him, for we shall see Him as He is.