It is not his to boast who loveth his country, but it is his who loveth the world.

"“One of the great events,” ‘Abdu’l-Bahá has, in His “Some Answered Questions,” affirmed, “which is to occur in the Day of the manifestation of that Incomparable Branch [Bahá’u’lláh] is the hoisting of the Standard of God among all nations. By this is meant that all nations and kindreds will be gathered together under the shadow of this Divine Banner, which is no other than the Lordly Branch itself, and will become a single nation. Religious and sectarian antagonism, the hostility of races and peoples, and differences among nations, will be eliminated. All men will adhere to one religion, will have one common faith, will be blended into one race, and become a single people. All will dwell in one common fatherland, which is the planet itself.”
This is the stage which the world is now approaching, the stage of world unity, which, as ‘Abdu’l-Bahá assures us, will, in this century, be securely established. “The Tongue of Grandeur,” Bahá’u’lláh Himself affirms, “hath … in the Day of His Manifestation proclaimed: ‘It is not his to boast who loveth his country, but it is his who loveth the world.’” “Through the power,” He adds, “released by these exalted words He hath lent a fresh impulse, and set a new direction, to the birds of men’s hearts, and hath obliterated every trace of restriction and limitation from God’s Holy Book.”"

Shoghi Effendi: The Promised Day Is Come