"... the best Jewish response to "The Jews don't know their own scriptures"
I have ever heard and from the "horses mouth."
Anyone who has grown up in the church, heard repeatedly from the pulpit that the Jews have a veil over their eyes and are unable to see Jesus as Messiah (II Corinthians 3:14

Having Arthur Rubinstein open the Auditorium helped the church immensely and it soon was actively involved with government officials in Israel.
This is the verse we used to denigrate the Jewish people:
II Corinthians 3:14
No mind they have turned this veil into a blindfold which is not the meaning of the Old Testament passage about Moses and the veil he wore going into God's presence and the shine on his face after receiving the Law or Old Covenant. .But their minds were made dull, for to this day the same veil remains when the old covenant is read. It has not been removed, because only in Christ is it taken away.
Amstrongites are on shaky group for claiming Jews have a veil over their eyes, when most of the splinter groups have a thicker veil covering their eyes about Jesus than any Jew has. The various ACOG's are just like the Jehovah's Witnesses and Adventists when it comes to trumpeting the law over the new covenant. Rules keep people safe and withing the box. Freedom leads people to do amazing things, which is why so many COG's false prophets can't stand it.