This could be translated as "people will call him the Son of the Most High One" or "people will acknowledge that he is the Son of God Most High."
## give him the throne of his father, David ##
<b>give him the throne of his father, David<b>- This could be translated as "give him authority to rule as king like his ancestor David did." The throne represents the king's authority to rule. (See: [[rc://en/ta/man/translate/figs-metonymy]])
## his father ##
The Bible often uses the word "fathers" to refer to ancestors and uses the word "sons" to refer to descendants. The word "his" refers to Mary's son.