Luke 21:5-7

ISV(i) 5 Jesus Predicts the Destruction of the Temple
Now while some people were talking about the Temple—how it was decorated with beautiful stones and gifts dedicated to God—he said, 6 “As for these things that you see, the time will come when not one stone will be left on another that won’t be knocked down.”
7 The Coming Wars and Revolutions
Then they asked him, “Teacher, when will these things take place, and what will be the sign that these things are about to take place?”