Chiasm of Sodom's Destruction

And while he lingered, the men laid hold upon his hand,

 and upon the hand of his wife, and upon the hand of his two daughters;

 the LORD being merciful unto him:

and they brought him forth, and set him without the city.

Genesis 19:16

A(19:12-14)    The angels tried to save Lot and his relatives       B(19:15-17)       Don't look back (19:17)     (תביט)          C(19:18-20)          Let me flee there-- it's a small place (19:20)     (מצער)             D(19:21-22a)             Permission of the LORD          C'(19:22b-23)          Lot arrived in Zoar (19:23)     (צערה)       B'(19:24-26)       Lot's wife looked back (19:26)     (ותבט)    A'(19:27-29)    Lot was saved from Sodom

A: Salvation. B: Looking back. C: To escape in a small town. D: Permission of the LORD.