Matthew 24:17-21

24:17 The one on the roof must not come down to take anything out of his house, 24:18 and the one in the field must not turn back to get his cloak. 24:19 Woe to those who are pregnant and to those who are nursing their babies in those days! 24:20 Pray that your flight may not be in winter or on a Sabbath. 24:21 For then there will be great suffering unlike anything that has happened from the beginning of the world until now, or ever will happen.