Bahá’u’lláh revealed prayers for the removal of difficulties. He told Abdu’llah Pasha, who had great difficulty in putting his trust in God, to repeat 19 times everyday the following 2 verses.
‘Go and tell the Vali from Us,’ He told Abdu’llah Pasha, ‘to put his trust wholly in God, and repeat every day, nineteen times, these two verses:
"He who puts his trust in God, God will suffice him"
"He who fears God, God will send him relief."’
(H.M. Balyuzi, Bahá’u’lláh - The King of Glory, p. 138)
Glorified art Thou, O my Lord! Thou beholdest my tribulations and all that hath befallen me at the hands of such of Thy servants as keep company with me, who have disbelieved in Thy most resplendent signs, and turned back from Thy most effulgent Beauty. I swear by Thy glory! Such are the troubles that vex me, that no pen in the entire creation can either reckon or describe them. I implore Thee, O Thou Who art the King of names and the Creator of earth and heaven, so to assist me by Thy strengthening grace that nothing whatsoever will have the power to hinder me from remembering Thee, or celebrating Thy praise, or to keep me back from observing what Thou hast prescribed unto me in Thy Tablets, that I may so arise to serve Thee that with bared head I will hasten forth from my habitation, cry out in Thy name amidst Thy creatures, and proclaim Thy virtues among Thy servants. Having accomplished what Thou hadst decreed, and delivered the thing Thou hadst written down, the wicked doers among Thy people would, then, compass me about and would do with me in Thy path as would please them.
(Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, p. 242-243)
Glory to Thee, O Thou Who art the Lord of all worlds, and the Beloved of all such as have recognized Thee! Thou seest me sitting under a sword hanging on a thread, and art well aware that in such a state I have not fallen short of my duty towards Thy Cause, nor failed to shed abroad Thy praise, and declare Thy virtues, and deliver all Thou hadst prescribed unto me in Thy Tablets. Though the sword be ready to fall on my head, I call Thy loved ones with such a calling that the hearts are carried away towards the horizon of Thy majesty and grandeur. Purge out thoroughly their ears, O my Lord, that they may hearken unto the sweet melodies that have ascended from the right hand of the throne of Thy glory. I swear by Thy might! Were any one to attune his ears to their harmony he would soar up to the kingdom of Thy revelation, wherein every created thing proclaimeth that Thou art God, and that there is none other God save Thee, the Omnipotent, the Help in Peril, the Self-Subsisting.
(Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, p. 170-171)
I ask God to grant thee by His favor and grace that which is thy utmost desire; that the closed doors become opened, the uneven roads become even, thy face shine by the love of God, thy sight become brighter 130 by witnessing the signs of God; that thou mayest attain spiritual joy, eternal happiness and heavenly life.
(‘Abdu’l-Bahá, Tablets of ‘Abdu’l-Bahá v1, p. 129)
I beseech Thee, by Thy Most Great Name, through which all created things were rent asunder and the whole creation was shaken, to send down from the clouds of Thy mercy that which will purge them from every ordeal and from whatever is hateful to Thee. Raise them up, then, to such heights that no amount of tribulation will keep them back from Thy wondrous remembrance, nor any trouble hinder them from turning toward the court of Thy transcendent oneness.
(Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, p. 168)
O God, my God! Be Thou not far from me, for tribulation upon tribulation hath gathered about me. O God, my God! Leave me not to myself, for the extreme of adversity hath come upon me. Out of the pure milk, drawn from the breasts of Thy loving-kindness, give me to drink, for my thirst hath utterly consumed me. Beneath the shadow of the wings of Thy mercy shelter me, for all mine adversaries with one consent have fallen upon me. Keep me near to the throne of Thy majesty, face to face with the revelation of the signs of Thy glory, for wretchedness hath grievously touched me. With the fruits of the Tree of Thine Eternity nourish me, for uttermost weakness hath overtaken me. From the cups of joy, proffered by the hands of Thy tender mercies, feed me, for manifold sorrows have laid mighty hold upon me. With the broidered robe of Thine omnipotent sovereignty attire me, for poverty hath altogether despoiled me. Lulled by the cooing of the Dove of Thine Eternity, suffer me to sleep, for woes at their blackest have befallen me. Before the throne of Thy oneness, amid the blaze of the beauty of Thy countenance, cause me to abide, for fear and trembling have violently crushed me. Beneath the ocean of Thy forgiveness, faced with the restlessness of the leviathan of glory, immerse me, for my sins have utterly doomed me.
(Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, p. 233)