It strikes me that the doctrine of the Trinity solves the paradox of the Israeli monarchy. God did not want Israel to have a king, in fact even as He gave them a king He said this was a sin against Him. So, in order to redeem Israel surely He must end the sin? And then He goes and complicates it further by making promises to David. How could any of this mess be resolved?
With Jesus as King, as Man (of David), and Divine. All the strands get tied together, in possibly the only way God could return the crown to Himself and yet keep His promises to David. I haven't noticed any papers, theological or otherwise on this, and I wonder why.
It's probably because it presents uncomfortable notions to statists.