So apparently what you are saying is that you think that what is in Gleanings From the Writings of Bahá’u’lláh are not the Writings of Baha’u’llah? That is a serious accusation because it means that the Baha’i Faith has been corrupted. Anyone else on this forum care to chime in on this?
Here are Bahaullah's words:
“Through the power of God and His might, I shall now relate certain passages revealed in the Books of old, and mention some of the signs heralding the appearance of the Manifestations of God in the sanctified persons of His chosen Ones, that thou mayest recognize the Dayspring of this everlasting morn and behold this Fire that blazeth in the Tree which is neither of the East nor of the West. Perchance thine eyes may be opened upon attaining the presence of thy Lord and thy heart partake of the blessings concealed within these hidden treasuries..................
And in the fourth Gospel, according to John, it is recorded: “But when the Comforter is come, whom I will send unto you from the Father, even the Spirit of truth, which proceedeth from the Father, he shall testify of me: and ye also shall bear witness.”9 And elsewhere He saith: “But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.”10 And: “But now I go my way to him that sent me; and none of you asketh me, Whither goest thou? But because I have said these things unto you…”11 And yet again: “Nevertheless I tell you the truth: It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you.”12 And: “Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will show you things to come.13
Such is the text of the verses revealed in the past. By Him besides Whom there is none other God, I have chosen to be brief, for were I to recount all the words that have been sent down unto the Prophets of God from the realm of His supernal glory and the kingdom of His sovereign might, all the pages and tablets of the world would not suffice to exhaust My theme. References similar to those mentioned, nay even more sublime and exalted, have been made in all the Books and Scriptures of old. Should it be My wish to recount all that hath been revealed in the past, I would most certainly be able to do so by virtue of that which God hath bestowed upon Me of the wonders of His knowledge and power. I have, however, contented Myself with that which was mentioned, lest thou become wearied in thy journey or feel inclined to turn back, or lest thou be overtaken by sadness and sorrow and overcome with despondency, trouble and fatigue.
Be fair in thy judgement and reflect upon these exalted utterances. Inquire, then, of those who lay claim to knowledge without a proof or testimony from God, and who remain heedless of these days wherein the Orb of knowledge and wisdom hath dawned above the horizon of Divinity, rendering unto each his due and assigning unto all their rank and measure, as to what they can say concerning these allusions. Verily, their meaning hath bewildered the minds of men, and that which they conceal of the consummate wisdom and latent knowledge of God even the most sanctified souls have been powerless to uncover.” - Bahá’u’lláh, Gems of Divine Mysteries.
After quoting the verse relating to Holy Ghost, Bahaullah says "such is the text of the verses revealed in the past". So that verse is a divine revelation, not a man made fictitious concept as Abdul Baha says.
And now let's check out what Abdul Baha says:
The question of the Trinity, since the time of His Holiness Christ until now, is the belief of the Christians, and to the present time all the learned among them are perplexed and confounded. All have confessed that the question is beyond the grasp of reason, for three cannot become one, nor one three. To unite these is impossible; it is either one or three.............Thus considered, Trinity is made a necessity, although the falsity of Trinity is evident. - Abdul Baha
Bahá'í Reference Library - Tablets of Abdul-Baha Abbas, Pages 512-514