They asked him, When shall these things be, &c. All the particulars in these verses are noticed and explained, Matthew 24:3-8, and Mark 13:3-8.
Related Commentaries of Luke 21:7
Luke 21:7-10
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?
8 And he said,Take heed that ye be not deceived: for many shall come in my name, saying, I am Christ; and the timea draweth near: go ye not therefore after them.
9 But when ye shall hear of wars and commotions, be not terrified: for these things must first come to pass; but the end is not by and by.
10 Then said he unto them, Nation shall rise against nation, and kingdom against kingdom: