Eusebius of Caesarea
Catena Aurea · Lukasevangelium 21
And as some spake of the temple, how it was adorned with goodly stones and gifts, he said, As for these things which ye behold, the days will come, in the which there shall not be left one stone upon another, that shall not be thrown down. And they asked him, saying, Master, but when shall these things be? and what sign will there be when these things shall come to pass? And he said, Take heed that ye be not deceived: for many shall come in my name, saying, I am Christ; and the time draweth near: go ye not therefore after them.
How beautiful was every thing relating to the structure of the temple, history informs us, and there are yet preserved remains of it, enough to instruct us in what was once the character of the buildings. But our Lord proclaimed to those that were wondering at the building of the temple, that there should not be left in it one stone upon another. For it was meet that that place, because of the presumption of its worshippers, should suffer every kind of desolation.