Matthew 24:16-22

16then let them that are in Judæa flee unto the mountains: 17let him that is on the housetop not go down to take out the things that are in his house: 18and let him that is in the field not return back to take his cloak. 19But woe unto them that are with child and to them that give suck in those days! 20And pray ye that your flight be not in the winter, neither on a sabbath: 21for then shall be great tribulation, such as hath not been from the beginning of the world until now, no, nor ever shall be. 22And except those days had been shortened, no flesh would have been saved: but for the elect’s sake those days shall be shortened.