Mark 13:15-19

Let him who is on the housetop not go down into the house, nor enter to take anything out of his house. And let him who is in the field not go back to get his clothes. But woe to those who are pregnant and to those who are nursing babies in those days! And pray that your flight may not be in winter. For in those days there will be tribulation, such as has not been since the beginning of the creation which God created until this time, nor ever shall be.