From the record of its tumultuous history, almost every page of which portrays a fresh crisis, is laden with the description of a new calamity, recounts the tale of a base betrayal, and is stained with the account of unspeakable atrocities, there emerges, clear and incontrovertible, the supreme truth that with every fresh outbreak of hostility to the Faith, whether from within or from without, a corresponding measure of outpouring grace, sustaining its defenders and confounding its adversaries, has been providentially released, communicating a fresh impulse to the onward march of the Faith, while this impetus, in its turn, would, through its manifestations, provoke fresh hostility in quarters heretofore unaware of its challenging implications -- this increased hostility being accompanied by a still more arresting revelation of Divine Power and a more abundant effusion of celestial grace, which, by enabling the upholders of that Faith to register still more brilliant victories, would thereby generate issues of still more vital import and raise up still more formidable enemies against a Cause that cannot but in the end resolve those issues and crush the resistance of those enemies, through a still more glorious unfoldment of its inherent power.

Shoghi Effendi, Promoting Entry by Troops, p. 2

Meanwhile the Faith that had been the object of such monstrous betrayals, and the target for such woeful assaults, was going from strength to strength, was forging ahead, undaunted and undivided by the injuries it had received. In the midst of trials it had inspired its loyal followers with a resolution that no obstacle, however formidable, could undermine. It had lighted in their hearts a faith that no misfortune, however black, could quench. It had infused into their hearts a hope that no force, however determined, could shatter.

Shoghi Effendi, The World Order of Bahá’u’lláh, p. 196

No reader of these words, so vibrant with promises", our beloved Guardian assured us, will be content to "rest upon" his "laurels". It would, he said, "be tantamount to a betrayal of the trust placed" upon the followers of Bahá’u’lláh.

Shoghi Effendi, Ministry of the Custodians, p. 311

Every devoted believer who is able to meet the specified conditions, must pay the Huququ'lláh, without any exception. Indeed according to the explicit Text of the Most Holy Book, failure to comply with this injunction is regarded as a betrayal of trust, and the divine call: "Whoso dealeth dishonestly with God will in justice be exposed," is a clear reference to such people.

Universal House of Justice, Huququ'llah, #100

Fully aware of the condition into which society had fallen, the consequences of his betrayal at the hands of family members on whose assistance he should have been able to rely, and the relative weakness of the resources available to him in the Bahá’í community itself, Shoghi Effendi arose to forge the means needed to realize the mission bequeathed to him.

Universal House of Justice, Century of Light, p. 53-54

It is not easy to settle in those lands, but with ingenuity, determination and reliance upon the confirmations of Bahá’u’lláh it is certainly possible both to settle and to persevere in service in goals which demand a spirit of self-sacrifice, detachment and purity of heart worthy of those who would emulate the shining example set by the martyrs in Iran, so many of whom are youth, who have given their lives rather than breathe one word that would be a betrayal of the trust of God placed upon them.

The Universal House of Justice, Messages 1963 to 1986, p. 585

While the physical discipline of children is an acceptable part of their education and training, such actions are to be carried out ‘gently and patiently’ and with “loving care”, far removed from the anger and violence with which children are beaten and abused in some parts of the world. To treat children in such an abhorrent manner is a denial of their human rights, and a betrayal of the trust which the weak should have in the strong in a Bahá’í community.

Universal House of Justice to an individual believer, 4 August, 1996

We have already sent you an account of the reaction of the Bahá’í world to Mason Remey's claim. It is now clear that a mere handful of believers supported it, but that these have been working actively to get others to join them. It must be obvious to the friends everywhere that acceptance of this baseless claim, and particularly activity in support of it designed to influence others, constitutes a betrayal of the Sacred Texts upholding the structure of the Cause of Bahá’u’lláh. This has been unanimously attested by all the National Assemblies in their repudiation of Mr. Remey's action.

Custodians, Ministry of the Custodians, p. 209