What is the meaning of the sanctity of tawhid (the oneness of Allah) and its protected zone, and what is the difference between them?

Question:
What is the wisdom behind the author’s repetition in the chapter “Protecting the Sanctity of Tawhid” and once in “Protecting the Protected Zone of Tawhid”?

Answer:
The sanctity (jinab) is part of the thing, and the protected zone (hima) is what lies beyond it. The protected zone of a thing is what lies beyond it. The Messenger (peace and blessings be upon him) is the protected zone of the protected zone, and the protected zone of his side, the side of tawhid (the oneness of Allah), meaning: what Allah has obligated upon the servants in terms of acts of obedience, He protected it from shirk (associating partners with Allah). Then He protected the protected zone by His statement when they said to him, “You are our master,” he said: (Blessed and Exalted is He) and he said: even though he is the master of creation (peace and blessings be upon him), but he protected the protected zone so that they would not exaggerate in his regard, so that they would not take the permissible as a means to the forbidden.