Genesis 19:17

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. The angels, having attended to their duty of bringing the fugitives forth out of the city, left them for other work, and the Lord took charge of their flight by bidding them escape to the mountains in the east, later those of Moab. Leave the valley, look straight ahead of you, hide in the mountains, those were the orders of the Lord.