“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.”

"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.”"

`Abdu'l-Bahá, The Promulgation of Universal Peace, p. 266

17 August 1912 
(excerpt from third of four) Talk(s) at Green Acre 
Eliot, Maine