[boatbums]

Both Joseph (through Solomon - Matt.1) and Mary (through Nathan - Luke 3) were of the lineage of King David. The curse on Jeconiah affected the line to Joseph and the curse was God's promise that no son of is lineage would sit upon the throne over Israel. Mary was also a legal heir to David's throne through his son Nathan. So Jesus had a legal right through Joseph as his Stepfather - though he was not under the curse because he was not of Joseph's blood. He also had the same right through Mary and he was not under the curse.

[kosta50]

Mary was also a legal heir to David's throne through his son Nathan

Davidic line had to be based on the father-son genealogy and it had to go through Solomon (1 Kings 1:30). Only Solomon's line is to rule on the throne of David forever. (1 Chronicles 22:9-10). That takes Nathan out of the equation.

Being Jesus' stepfather is irrelevant considering that Joseph's royal inheritance was disqualified because of the curse (Jeremiah 22:28-30).

Besides, adoption is not an option in assuming the Davidic throne. There are other examples of this. A Kohane (priest) can adopt a son but that son cannot become a Kohane. The priesthood is transferred only by a physical (chromosomal or "blood") inheritance.

Besides, Jesus repeatedly told everyone that his Father is in heaven and not of this world.