1)
Why did the angels make a point of closing the door?
1.
Seforno: They did that in order to encourage the men of S'dom to continue searching for it, in order to demonstrate the extent
1
of their evil.
2
1
That even in their blindness, they did not desist from carrying out their original intentions. Refer to 19:11:1:1.
2
Bear in mind that the Din of S'dom was not yet complete and that the enfolding scenario was part of its judgment (Refer to 18:26:1:1)