What does it mean "whoever shall fall on this stone shall be broken"?

What is the primary application of Matthew 21:44?

The words of this verse, "And whosoever shall fall on this stone shall be broken: but on whomsoever it hall fall, it will grind him to powder," have a primary reference to the relation of Jew and Gentile to the Lord Jesus Christ. The Jews have fallen on this stone, and they have been broken. To the Jew, Jesus of

Nazareth was a stone of stumbling, and a rock of offence" (I Pet 2:8) and as a nation they were broken. When Christ comes in judgment upon the Gentiles in their sin and unbelief, He will fall upon them as the "stone... cut out... without hands" (Daniel 2:45) and will grind them to powder. The broken Israel nation will rise again, but the Gentile nations never will.

H.Alves (the only answer in the first Truth and Tidings magazine "Questions and Answers," August, 1948)