From the beginning of human history down to this time the world of humanity has not enjoyed a day of absolute rest and relaxation from conflict and strife. Most of the wars have been caused by religious prejudice, fanaticism and sectarian hatred. Religionists have anathematized religionists, each considering the other as deprived of the mercy of God, abiding in gross darkness and the children of Satan. For example, the Christians and Muslims considered the Jews satanic and the enemies of God. Therefore, they cursed and persecuted them. Great numbers of Jews were killed, their houses burned and pillaged, their children carried into captivity. The Jews in turn regarded the Christians as infidels and the Muslims as enemies and destroyers of the law of Moses. Therefore, they call down vengeance upon them and curse them even to this day. Consider what injuries, ordeals and calamities have been inflicted upon mankind since the beginning of history. Every city, country, nation and people has been subjected to the destruction and havoc of war. Each one of the divine religions considers itself as belonging to a goodly and blessed tree, the tree of the Merciful, and all other religious systems as belonging to a tree of evil, the tree of Satan. For this reason they heap execration and abuse upon each other. This is clearly apparent in books of historical record and prevailed until the time of the appearance of Bahá’u’lláh. When the light of Bahá’u’lláh dawned from the East, He proclaimed the promise of the oneness of humanity. He addressed all mankind, saying, “Ye are all the fruits of one tree. There are not two trees: one a tree of divine mercy, the other the tree of Satan.” Again He said, “Ye are all the fruits of one tree, the leaves of one branch.” This was His announcement; this was His promise of the oneness of the world of humanity. Anathema and execration were utterly abrogated. He said, “It is not becoming in man to curse another; it is not befitting that man should attribute darkness to another; it is not meet that one human being should consider another human being as bad; nay, rather, all mankind are the servants of one God; God is the Father of all; there is not a single exception to that law. There are no people of Satan; all belong to the Merciful. There is no darkness; all is light. All are the servants of God, and man must love humanity from his heart. He must, verily, behold humanity as submerged in the divine mercy.”