1022 B
The angel continues speaking to Daniel.
The king of the South
It can be made clear that "the South" refers to Egypt. "The king of Egypt in the south" (See: rc://en/ta/man/translate/figs-explicit)
they will make an alliance
"they will make an alliance with another king" or "they will make an alliance with the king of the North." This alliance would be a formal agreement that both nations are required to follow. AT: "the king of the South and the king of the North will promise to work together."
The daughter of the king of the South will come...to confirm the agreement
The daughter of one king is given in marriage to the other king or his son. The marriage has the force of a contract between the two kings.
The king of the North
It can be made clear that "the North" refers to Syria. "The king of Syria in the north" (See: rc://en/ta/man/translate/figs-explicit)
she will be abandoned
AT: "they will abandon her" (See: rc://en/ta/man/translate/figs-activepassive)