Either one of the angels said this, or the third person, the Lord himself, who having parted from Abraham, after some time came to Lot, as appears both by the change of the number; for before this he speaks of them in the plural number, but from hence in the singular number, as Genesis 19:19,21,22; and by the variation of the phrase, for the other two speak with submission, and as servants, Genesis 19:13, The Lord hath sent us, & c.; but this speaks with more authority, as is evident from Genesis 19:21,22. Escape for thy life, i.e. as thou lovest thy life. See Deuteronomy 4:15 Joshua 23:11 Jeremiah 17:21. Or, escape with thy life, for the Hebrew particle al is sometimes taken for with, as Exodus 35:23 Leviticus 2:2, Leviticus 14:31 Deuteronomy 22:6. So the sense is, Stand not lingering in hopes to save thy goods, them thou shalt lose as a punishment of thy sin and folly in choosing to dwell with so wicked a people; and be thankful that thou hast thy life given thee for a prey, as it is expressed, Jeremiah 38:2. Look not behind thee, like one that grieves either for the loss of thy pleasant habitation or vast estate, or for those cursed miscreants justly devoted to this destruction. And this command, though given to Lot alone, yet was directed also to his companions, to whom doubtless he imparted it, as is evident both from all the other commands, which equally concern all, and from the following event. See Matthew 24:18 Luke 9:62.
Related Commentaries of Genesis 19:17
Genesis 19:17
17 And it came to pass, when they had brought them forth abroad, that he said, Escape for thy life; look not behind thee, neither stay thou in all the plain; escape to the mountain, lest thou be consumed.