The original purpose of the Sphinx is unknown. It may have been built to symbolically guard over the Giza plateau, and it may have been a portrait of Pharaoh Khafre<span>. It's face seems to bear a resemblance to Khafre's, and the royal headdress that it wears is particular to pharaohs.</span>
The purpose of the Sphinx was to guard the pyramids and crush the Pharaohs enemies that try to rob his tomb. It also means the wisdom and strength. that's what I would have thought it was without reading it.
The system of separation of powers divides the tasks of the state into three branches: legislative, executive and judicial. These tasks are assigned to different institutions in such a way that each of them can check the others.