Luke
Luke 21:7BSB·traditional attribution

“Teacher,” they asked, “when will these things happen? And what will be the sign that they are about to take place?”

Matthew Henry Presbyterian @wholebiblehenry

See here, I. With what admiration some spoke of the external pomp and magnificence of the temple, and they were some of Christ's own disciples too; and they took notice of it to him how it was adorned with goodly stones and gifts, Luk 21:5.

Commenting on Luke 21:5-19

John Gill Reformed Baptist @doctorgill

And they asked him,.... That is, his disciples, when they were come to the Mount of Olives, and as he sat upon that, Mat 24:3 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?

Albert Barnes Presbyterian @notesbybarnes

Verses 7-36. The account of the destruction of Jerusalem contained in this chapter has been fully considered in , and following. All that will be necessary here will be an explanation of a few words that did not occur in that chapter.