The power of the Covenant

Should they place in the arena the crown of the government of the whole world, and invite each one of us to accept it, undoubtedly we shall not condescend, and shall refuse to accept it.
  To attain to this supreme station is, however, dependent on the realization of certain conditions: 
The first condition is firmness in the Covenant of God. For the power of the Covenant will protect the Cause of Bahá’u’lláh from the doubts of the people of error. It is the fortified fortress of the Cause of God and the firm pillar of the religion of God. Today no power can conserve the oneness of the Bahá’í world save the Covenant of God; otherwise differences like unto a most great tempest will encompass the Bahá’í world. It is evident that the axis of the oneness of the world of humanity is the power of the Covenant and nothing else.
Had the Covenant not come to pass, had it not been revealed from the Supreme Pen and had not the Book of the Covenant, like unto the ray of the Sun of Reality, illuminated the world, the forces of the Cause of God would have been utterly scattered and certain souls who were the prisoners of their own passions and lusts would have taken into their hands an axe, cutting the root of this Blessed Tree. Every person would have pushed forward his own desire and every individual aired his own opinion! ..


`Abdu'l-Bahá, Tablets of the Divine Plan