What Makes a Monarchy Secure?

David, sitting in his palace, sees that the Ark of the Covenant is still sitting in the Mishkan tent, and wants to fulfill the commandment to build the Beit Hamikdash (Holy Temple) now that the prerequisite of a secure monarchy is fulfilled.  God, using the prophet Nathan, stops him.  David mistook the meaning of a secure House of David for physical security, sitting in his palace in fortified Jerusalem. But the true intent was a spiritually secure House of David, and a monarchy is only secure if it is passed on to the monarch’s son, which had never happened before in Israel.  Therefore, by definition, only the second generation of the House of David, Shlomo (Solomon,) could build the Temple upon inheriting the throne.