God promised David that he would raise up one of his sons to be a king that will rule an eternal kingdom. This king will be the king of all kings and the government shall be upon his shoulder. He will be the Prince of Peace. He will rule with justice and righteousness. This prophecy found its temporary fulfillment in King Solomon but it
found its final and ultimate fulfillment in the Lord Jesus. God orchestrated this promise to hinge entirely on the fact the one who would fill this role must be a child of David and Jesus was just that. He was David’s son through rightful lineage and biology.