6 And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet. 

20 And when ye shall see Jerusalem compassed with armies, then know that the desolation thereof is nigh.

21 Then let them which are in Judæa flee to the mountains; and let them which are in the midst of it depart out; and let not them that are in the countries enter thereinto.