Then today We will save your body only so that it should be a sign for the successors; and indeed, many among the people are heedless about Our Signs.
When the spirit reaches the throat to depart from one’s body (at the time of death), the acceptance of belief or repentance will not be benefitted as explained in verses 4: 17-18.
Lord Allah maintained Pharaoh’s body for about 2800 years in the sea, then later it was transferred into the Egyptian Museum. It is a sign from the Lord to the whole of mankind. Even by seeing such miraculous Signs, the Arabic Qur’an reading Fujjar by hiding and rejecting Adhikr had become heedless. The Hellfire will be filled with such heedless and aimless Kuffar as explained in verse 7: 179. By the appearance of any of the 10 crucial signs, no soul will be benefited from its belief since the doors of repentance will be closed forever as explained in verses 6: 158-159. See the explanations 9: 67-68, 125 and 10: 75.