As I suspected, these were not personal claims.Let's talk about them one by one. First regarding davidic Throne.
Non of the verses you have quoted, is using the word "blood line" if we want to look at them the way, you look at the Baha'i Scriptures.
The verses in Bible uses the word "Branch" or in some Translations "Throne of David"
For example:
"But King Solomon shall be blessed, and the throne of David shall be established
before the LORD forever." 1. King 2:45
In the verse I quoted from Baha'u'llah, He is clearly refering to Himself as the Ancient Beauty on the Throne of David.
"THE Most Great Law is come, and the Ancient Beauty ruleth upon the throne of David. Thus hath My Pen spoken that which the histories of bygone ages have related. At this time, however, David crieth aloud and saith: O my loving Lord! Do Thou number me with such as have stood steadfast in Thy Cause, O Thou through Whom the faces have been illumined, and the footsteps have slipped!" - Baha'u'llah
Bahá'í Reference Library - Proclamation of Baháulláh, Pages 89-90
Jesus also according to Bible did not have a Physical Father. The Jews do not accept Him to fulfill this Prophecy.
However, Baha'u'llah has clearly said that in His verse.
If you are saying why Baha'u'llah did not use the Word "Bloodline", then I tell you, the Bible also does not use the Word Blood Line either. So, let's be fair in our Judgements.
Moreover, just to give you some background to Baha'i Faith, Baha'u'llah in His Written Will, anounced that after Him, Abdulbaha is the Infallible Succesor, and He Perfectly knows the Knowledge of the Verses of God. So, if you are looking to Baha'i Revelation, the Proper Way is to know that the guidance and interpretation of Scriptures continued until Shoghi Effendi, and it is not proper to separate them from Baha'i Revelation.
Abdulbaha, has explained the following in His Writings:
"When Christ appeared, twenty centuries ago, although the Jews were eagerly awaiting His Coming, and prayed every day, with tears, saying: O God, hasten the Revelation of the Messiah, yet when the Sun of Truth dawned, they denied Him and rose against Him with the greatest enmity, and eventually crucified that divine Spirit, the Word of God, and named Him Beelzebub, the evil one, as is recorded in the Gospel. The reason for this was that they said: The Revelation of Christ, according to the clear text of the Torah, will be attested by certain signs, and so long as these signs have not appeared, whoso layeth claim to be a Messiah is an impostor. Among these signs is this, that the Messiah should come from an unknown place, yet we all know this mans house in Nazareth, and can any good thing come out of Nazareth? The second sign is that He shall rule with a rod of iron, that is, He must act with the sword, but this Messiah has not even a wooden staff. Another of the conditions and signs is this: He must sit upon the throne of David and establish Davids sovereignty. Now, far from being enthroned, this man has not even a mat to sit on. Another of the conditions is this: the promulgation of all the laws of the Torah; yet this man has abrogated these laws, and has even broken the sabbath day, although it is the clear text of the Torah that whosoever layeth claim to prophethood and revealeth miracles and breaketh the sabbath day, must be put to death. Another of the signs is this, that in His reign justice will be so advanced that righteousness and well-doing will extend from the human even to the animal worldthe snake and the mouse will share one hole, and the eagle and the partridge one nest, the lion and the gazelle shall dwell in one pasture, and the wolf and the kid shall drink from one fountain. Yet now, injustice and tyranny have waxed so great in His time that they have crucified Him! Another of the conditions is this, that in the days of the Messiah the Jews will prosper and triumph over all the peoples of the world, but now they are living in the utmost abasement and servitude in the empire of the Romans. Then how can this be the Messiah promised in the Torah?
In this wise did they object to that Sun of Truth, although that Spirit of God was indeed the One promised in the Torah. But as they did not understand the meaning of these signs, they crucified the Word of God. Now the Baháís hold that the recorded signs did come to pass in the Manifestation of Christ, although not in the sense which the Jews understood, the description in the Torah being allegorical. For instance, among the signs is that of sovereignty. For Baháís say that the sovereignty of Christ was a heavenly, divine, everlasting sovereignty, not a Napoleonic sovereignty that vanisheth in a short time. For well nigh two thousand years this sovereignty of Christ hath been established, and until now it endureth, and to all eternity that Holy Being will be exalted upon an everlasting throne.
In like manner all the other signs have been made manifest, but the Jews did not understand. Although nearly twenty centuries have elapsed since Christ appeared with divine splendour, yet the Jews are still awaiting the coming of the Messiah and regard themselves as true and Christ as false. " Selection From the Witings of Abdulbaha,p.38
"In Isaiah, chapter 11, verses 1 to 10, it is said: And there shall come forth a rod out of the stem of Jesse, and a Branch shall grow out of his roots: And the spirit of the Lord shall rest upon him.....
.....This rod out of the stem of Jesse might be correctly applied to Christ, for Joseph was of the descendants of Jesse, the father of David; but as Christ found existence through the Spirit of God, He called Himself the Son of God. If He had not done so, this description would refer to Him. Besides this, the events which he indicated as coming to pass in the days of that rod, if interpreted symbolically, were in part fulfilled in the day of Christ, but not all; and if not interpreted, then decidedly none of these signs happened.
.....But these verses apply word for word to Baháulláh....."
Abdulbaha, Some Answered Questions, p.32
Moreover, the other verses I gave from Baha'u'llah, is clearly saying "I am".
If you like to read them within the context, here are references:
"Turn ye away from all that is on earth and seek none else but Me. I am the Sun of Wisdom and the Ocean of Knowledge. I cheer the faint and revive the dead. I am the guiding Light that illumineth the way. I am the royal Falcon on the arm of the Almighty. I unfold the drooping wings of every broken bird and start it on its flight" - Baha'u'llah
http://reference.bahai.org/en/t/b/TU/tu-3.html
"I am the One Whom the tongue of Isaiah hath extolled, the One with Whose name both the Torah and the Evangel were adorned . Blessed be the king whose sovereignty hath withheld him not from his Sovereign, and who hath turned unto God with his heart. " - Baha'u'llah
http://reference.bahai.org/en/t/b/PB/pb-7.html.utf8
Please let's try to keep the subject within the scope of thread "Signs of the End"
When read in the complete context there is no direct personal association being made.