Yes, Abraham was promised many descendants, but it never meant his body's offspring. As a picture of that, he was given Isaac who was not concieved normally by him but apart from him!
... ... In Genesis 18, God sends his Angels to Abraham to announce details about the "Covenant he had with Abraham" in the destruction of Sodom and Gomorrah, which would begin the Annunaki Alien experience in mesopotamia (lands between two rivers, the Tigris and Euphrates rivers). ... Abraham does not call himself "righteous", but he asks if there are any "righteous" people in Sodom and Gomorrah. ... ... Finally the Lord says I will not destroy the City of there is at Least One righteous person there ... ...
However when God does go to Sodom and Gomorrah, he confirms his covenant with Lot ("the righteous") and destroys Sodom and Gomorrah, and God therefore discards his confirmation with Abraham regarding Sodom and Gomorrah.
God uses the "Covenant of Abraham" to represent the end of his Judgment over mankind, but God uses his "Covenant with the Sons of Man", to confirm his Covenant (And Lot was a picture of this). ... ... Issac was blessed by the Lord, because God would use apart of the line of Abraham for the "Confirmation of His Covenant", and apart of the line of Abraham to represent "the Gospel God was giving to man, towards its satisfaction".
The Blood descendants of Abraham were absolutely in view. But Just like Lot branched out from the Line of Abraham and god used him instead of Abraham, so did Jesus Branch out from the Line of Abraham, and God used Jesus and not a traditional Blood descendant of Abraham. (Issac was, once again, a picture of the branching out of the Line of Abraham).
The plural seed he was promised was always those in the one Seed who was Christ, with whom he had talked, and whom he had worshipped before the Law came as Melchi (King) Zedek (Righteousness).
Melchizedek was Promised to the Line of Abraham, that is the satisfaction of the end of his Covenant and the new earth. This is clear in the New Testament and the Book of Hebrews. We also find in the New Testament that the New Covenant the one that translates man into the new universe, is also available to mankind, but it is not available to certain groups of people, namely the "Tribe of Dan/Canaan", that has always been the enemy of the Blood Line of Abraham the Jewish People. These people are taken away at the end of time, they vanish, because God has declared this from the Beginning of Time, that "Han the father of Canaan, could not be Glorified with Noah, but would be the shame of Noah".
***Abraham was promised,
Melchizedek - to be Slain in the Spirit for the sake of Righteousness. However when he attempted to do this with the Gospel, that is when he attempted to slay his son, God told Abraham essentially that he would not fulfill the promise of Melchizedek in full because of the "Tribe of Dan" that is in the earth until the end of time, and so Abraham was given a Ram to Slay, and he was sorely disappointed. He was disappointed that he could not "Slay the Spirit" in the earth, but that his actions were counted for "Righteousness", and not the "Satisfaction of it" ... we are not talking about committing a sin, God wanted the jews to represents the satisfaction of his covenant to demonstrate his mercy with man, but not to glorify the earth.
Righteousness is necessary for justification from sins, and Christ was explaining and offering just that. We are redeemed from the curse of Adam's debt so that the blessing given to Abraham (justification) could come to all nations through Christ, which allows us to recieve the promise of the Spirit. That Spirit is in all OT visions about restoration.
Essentially yes. We are redeemed from the Curse of Adam by the cleansing of the Gospel and once this dept is paid, we can then receive the "Blessing of Abraham". Jesus promised to the Church, which had only been promised to the Jews before Jesus Came, and this was only revealed to the Church when Judas was commanded by Jesus to be taken to the Church.
The Debt is paid to a higher degree for the Line of Abraham, then it is for the rest of mankind, this is a sound way of describing the "Genetic Inheritance the Jewish people received from Abraham". Just like it is much more difficult for certain groups of people to inherit the "Blessing of Abraham", and this is why Jewish people are targeted in countries with high rape and murder rates, in established patterns (to this the bible says "mene mene tekel upharsin"). But remember we have designed a law at the end of time to achieve the migration of man in a peaceful way.
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So yes the Antichrist, like Lot and Jesus and a number of other personalities would probably be branched out of the Line of Abraham specifically. Or have Jewish descendency, somewhere in his bloodline. Some people even believe that the Antichrist can only be a Jewish person, like Nostradamus. But we must keep watch, because like Moses and the Exodus sometimes this is not as clear by visual appearances.