This verse is inscribed on the United Nations building in New York City. The problem is, they left out the first part of the verse - which is the key to the entire verse. No matter how organized she becomes, no matter how politically involved she is, even the Church will not be able to usher in peace on this earth. Oh, there will be peace internally, as the Holy Spirit floods peoples’ hearts individually, but there won’t be peace nationally until the Prince of Peace comes back.

The only way a person can have peace internally is to allow Jesus Christ, the Prince of Peace, into his life personally. And the only way the world can experience peace globally is for Jesus to come back and reign in Jerusalem - as seen in this prophecy.