Luke 21:7
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 they asked him,.... That is, his disciples, when they were come to the Mount of Olives, and as he sat upon that,
saying, Master, but when shall these things be? when the temple shall be destroyed; and one stone shall not be left upon another;
and what sign will there be when these things shall come to pass? which shows that this refers to the destruction of the temple, and so the signs following; See Gill on "Matthew 24:3".