Charles Spurgeon Commentary Luke 21:7

"And they asked him, saying, Teacher, when therefore shall these things be? and what [shall be] the sign when these things are about to come to pass?" — Luke 21:7 (ASV)

Those questions are always being asked; they are being asked to this very day about Christ's second coming. They will have no answer, for Christ himself assures us that, as the Son of Man, he did not know the day nor the hour of his own coming. As the Son of God he knew all things; but as a man like ourselves, he was willing to profess ignorance on that point.