Jamieson, Fausset and Brown on Genesis 19:15-17

15-17. The kindly interest the angels took in the preservation of Lot is beautifully displayed. But he "lingered." Was it from sorrow at the prospect of losing all his property, the acquisition of many years? Or was it that his benevolent heart was paralyzed by thoughts of the awful crisis? This is the charitable way of accounting for a delay that would have been fatal but for the friendly urgency of the angel.