Religious fanaticism and hatred are ...

The Purpose of the one true God, exalted be His glory, in revealing Himself unto men is to lay bare those gems that lie hidden within the mine of their true and inmost selves. That the divers communions of the earth, and the manifold systems of religious belief, should never be allowed to foster the feelings of animosity among men, is, in this Day, of the essence of the Faith of God and His Religion. These principles and laws, these firmly-established and mighty systems, have proceeded from one Source, and are the rays of one Light. That they differ one from another is to be attributed to the varying requirements of the ages in which they were promulgated.
Gird up the loins of your endeavor, O people of Bahá, that haply the tumult of religious dissension and strife that agitateth the peoples of the earth may be stilled, that every trace of it may be completely obliterated. For the love of God, and them that serve Him, arise to aid this most sublime and momentous Revelation. Religious fanaticism and hatred are a world-devouring fire, whose violence none can quench. The Hand of Divine power can, alone, deliver mankind from this desolating affliction….

Gleanings From the Writings of Bahá’u’lláh