Luke 20:18

Overview - Luke 20
Christ avouches his authority by a question of John's baptism.
The parable of the vineyard.
19 Of giving tribute to Caesar.
27 He convinces the Sadducees, that denied the resurrection.
41 How Christ is the Son of David.
45 He warns his disciples to beware of the scribes.
Treasury of Scripture Knowledge

Luke 20:18  (King James Version)
Whosoever shall fall upon that stone shall be broken; but on whomsoever it shall fall, it will grind him to powder.

shall fall
This is an allusion to the Jewish mode of stoning. "The place of stoning was twice as high as a man. From the top of this one of the witnesses struck the culprit on the loins, and felled him to the ground: if he died of this, well; if not, the other witness threw a stone upon his heart," etc. Our Lord seems to refer not only to the dreadful crushing of the Jews by the Romans, but also to their general dispersion to the present day.
Isaiah 8:14 Isaiah 8:15 ; Daniel 2:34 Daniel 2:35 Daniel 2:44 Daniel 2:45 ; Zechariah 12:3 ; Matthew 21:34 ; 1 Thessalonians 2:16