As to teaching the Cause to Christians, it seems to be important for the Bahá'ís to recognize that the concepts of Christian theology and the Teachings of the Bahá'í Faith constitute two different universes of discourse. They perceive the same truths, but their terminologies are not uniformly interchangeable. When a Christian reads Bahá'u'lláh's words "There hath not been in My soul but the Truth, and in Myself naught could be seen but God" or His statement in the Tablet of Tarázát, "He Who heralded this Revelation hath declared: ‘He shall proclaim under all conditions: "Verily, verily, I am God, no God is there but Me, the Help in Peril, The Self-Subsisting."'" he naturally reads this in the context of a doctrine of incarnation, and could take as dissimulation Bahá'u'lláh's statement, "Certain ones among you have said: ‘He it is Who hath laid claim to be God.' By God! This is a gross calumny. I am but a servant of God Who hath believed in Him and in His signs, and in His Prophets and in His angels. My tongue, and My heart, and My inner and My outer being testify that there is no God but Him, that all others have been created by His behest, and been fashioned through the operation of His Will. There is none other God but Him, the Creator, the Raiser from the dead, the Quickener, the Slayer. I am He that telleth abroad the favors with which God hath, through His bounty, favored Me. If this be My transgression, then I am truly the first of the transgressors."
It is only in the light of the Bahá'í doctrine of the nature of the Manifestations of God and their relationships to God, to one another and to mankind that such statements can be clearly understood. So also the Guardian's unequivocal statement that "the Sonship and Divinity of Jesus Christ are fearlessly asserted".
- The Universal House of Justice (From a letter dated 21 December 1992, written on behalf of the Universal House of Justice to an individual believer; Baha’i Library Online)