‘He doeth what He pleaseth’

An Illuminated Tablet in the
 Handwriting of Bahá'u'lláh.

 Praise be unto God Who hath made the Most Great Infallibility the shield for the temple of His Cause in the realm of creation, and hath assigned unto no one a share of this lofty and sublime station—a station which is a vesture which the fingers of transcendent power have woven for His august Self. It befitteth no one except Him Who is seated upon the mighty throne of ‘He doeth what He pleaseth’. Whoso accepteth and recognizeth that which is written down at this moment by the Pen of Glory is indeed reckoned in the Book of God, the Lord of the beginning and the end, among the exponents of divine unity, they that uphold the concept of the oneness of God.
When the stream of words reached this stage, the sweet savours of true knowledge were shed abroad and the day-star of divine unity shone forth above the horizon of His holy utterance. Blessed is he whom His Call hath attracted to the summit of glory, who hath drawn nigh to the ultimate Purpose, and who hath recognized through the shrill voice of My Pen of Glory that which the Lord of this world and of the next hath willed. Whoso faileth to quaff the choice wine which We have unsealed through the potency of Our Name, the All-Compelling, shall be unable to discern the splendours of the light of divine unity or to grasp the essential purpose underlying the Scriptures of God, the Lord of heaven and earth, the sovereign Ruler of this world and of the world to come. Such a man shall be accounted among the faithless in the Book of God, the All-Knowing, the All-Informed.

Tablets of Bahá’u’lláh  P.106

O followers of the Bayán!

O followers of the Bayán! Fear ye the All-Merciful. This is the One Who hath been glorified by Muḥammad, the Apostle of God, and before Him by the Spirit  and yet before Him by the One Who discoursed with God.  This is the Point of the Bayán calling aloud before the Throne, saying: ‘By the righteousness of God, ye have been created to glorify this Most Great Announcement, this Perfect Way which lay hid within the souls of the Prophets, which was treasured in the hearts of the chosen ones of God and was written down by the glorious Pen of your Lord, the Possessor of Names.’...
Fear ye the All-Merciful, O people of the Bayán, and commit not that which the followers of the Qur’án have committed—they who in the daytime and in the night season professed belief in the Faith of God, yet when the Lord of all men did appear, turned aside from Him and pronounced so cruel a sentence against Him that, on the Day of Return, the Mother Book sorely bewailed His plight. Call ye to mind and ponder upon their deeds and words, their stations and merits and the things they brought to pass when He Who conversed on Sinai unloosed His tongue, when there was a blast on the Trumpet, whereupon all that are in heaven and on earth swooned away except such as are reckoned among the letters of affirmation.

Tablets of Bahá’u’lláh